阅读说明：本技术 半导体装置 (semiconductor device with a plurality of semiconductor chips ) 是由 李承镐 于 2018-12-28 设计创作，主要内容包括：本申请公开了一种半导体装置。一种半导体装置包括：第一电压检测电路,其被配置为响应于第一电压的电压电平、电流控制信号和第二电压检测信号而产生第一电压检测信号；以及储存和输出电路,其被配置为响应于电压检测信号而产生电力控制信号和电流控制信号。(The application discloses a semiconductor device. A semiconductor device includes: a first voltage detection circuit configured to generate a first voltage detection signal in response to a voltage level of a first voltage, a current control signal, and a second voltage detection signal; and a storage and output circuit configured to generate the power control signal and the current control signal in response to the voltage detection signal.)

1. A semiconductor device, comprising:

A first voltage detection circuit configured to generate a first voltage detection signal in response to a voltage level of a first voltage, a current control signal, and a second voltage detection signal; and

A storage and output circuit configured to generate a power control signal and the current control signal in response to the voltage detection signal.

2. The semiconductor device according to claim 1, further comprising:

a second voltage detection circuit configured to generate the second voltage detection signal by detecting a voltage level of a second voltage,

Wherein the second voltage detection circuit enables the second voltage detection signal when a voltage level of the second voltage becomes equal to or higher than a set voltage level.

3. The semiconductor device according to claim 1, wherein the first voltage detection circuit enables the first voltage detection signal when the first voltage detection signal is enabled and a voltage level of the first voltage becomes equal to or higher than the set voltage level, and disables the first voltage detection signal when the second voltage detection signal is disabled.

4. The semiconductor device according to claim 3, wherein the first voltage detection circuit disables the first voltage detection signal when the current control signal is enabled.

5. The semiconductor device according to claim 1, wherein when the first voltage detection signal is enabled, the storage and output circuit latches the first voltage detection signal and outputs the latched signal as the power control signal, and delays the first voltage detection signal and outputs the delayed signal as the current control signal.

6. A semiconductor device, comprising:

A first voltage detection circuit configured to enable a first voltage detection signal when a voltage level of the first voltage becomes higher than a first set voltage level;

A second voltage detection circuit configured to enable the second voltage detection signal when the first voltage detection signal is enabled and a voltage level of the second voltage becomes higher than a second set voltage level, and configured to disable the second voltage detection signal in response to the current control signal; and

A storage and output circuit configured to enable the current control signal when the second voltage detection signal is enabled, and configured to generate a power control signal by latching the enabled second voltage detection signal.

7. The semiconductor device as set forth in claim 6,

Wherein the second voltage detection circuit disables the second voltage detection signal when the first voltage detection signal is disabled,

Wherein the second voltage detection circuit enables the second voltage detection signal when the first voltage detection signal is enabled and the voltage level of the second voltage becomes higher than the second set voltage level, an

Wherein the second voltage detection circuit disables the second voltage detection signal when the current control signal is enabled.

8. The semiconductor device according to claim 7, wherein the second voltage detection circuit comprises:

A first current source circuit configured to raise a voltage level of an input node of an inverter by passing a current to the input node in response to the current control signal;

a current sink circuit configured to lower a voltage level of an input node by leaking a current from the input node in response to the voltage levels of the first voltage detection signal and the second voltage;

A second current source circuit configured to raise a voltage level of the input node by passing a current to the input node in response to a first voltage detection signal;

A third current source circuit configured to raise a voltage level of the input node by passing a current to the input node in response to the current control signal; and

An inverter configured to receive a voltage level of the input node and output the second voltage detection signal.

9. The semiconductor device according to claim 8, wherein the first current source circuit comprises:

A capacitor having one terminal configured to receive the current control signal and another terminal coupled to a ground terminal;

A transistor having a gate configured to receive the current control signal and a source configured to receive the first voltage; and

A resistor having one terminal coupled to the drain of the transistor and another terminal coupled to the input node.

10. The semiconductor device of claim 8, wherein the third current source circuit has a drain configured to receive the first voltage, a gate configured to receive the current control signal, and a source coupled to the input node.

11. The semiconductor device of claim 8, wherein the current sink circuit comprises:

A first transistor having a gate configured to receive the second voltage and a source coupled to a ground terminal; and

a second transistor having a gate configured to receive the first voltage detection signal, a drain coupled to the input node, and a source coupled to the drain of the first transistor.

12. the semiconductor device according to claim 6, wherein the storage and output circuit comprises:

A control signal generation circuit configured to generate a switch control signal that is enabled during a set period in which the second voltage detection signal is enabled, and delay the second voltage detection signal and output the delayed signal as the current control signal;

A switch configured to output the second voltage detection signal as a latch inverted signal during a period in which the switch control signal is enabled;

A latch circuit configured to latch and invert the latch invert signal, and output the latched and inverted signal as a latch signal; and

A power control signal output circuit configured to generate the power control signal by comparing voltage levels of the latch inverted signal and the latch signal.

13. The semiconductor device according to claim 12, wherein the control signal generation circuit comprises:

A Schmitt trigger circuit configured to generate a high level output signal when the second voltage detection signal is enabled and configured to generate a low level output signal when the second voltage detection signal is disabled;

A first delay circuit configured to delay and invert a high-level output signal or a low-level output signal of the schmitt trigger circuit, and configured to output the delayed and inverted signal;

A second delay circuit configured to delay and invert the high-level output signal or the low-level output signal of the first delay circuit, and configured to output other delayed and inverted signals as the current control signal; and

An AND gate configured to receive a high-level output signal or a low-level output signal of the Schmitt trigger circuit and the delayed and inverted signal output from the first delay circuit, and configured to output the switch control signal.

14. The semiconductor device according to claim 12, wherein the power control signal output circuit comprises:

A first transistor having a first gate configured to receive a latch signal from the latch circuit, a first source configured to be coupled to a ground terminal, and a first drain;

A second transistor having a second gate configured to receive the latched inverted signal, a second source configured to be coupled to the ground terminal, and a second drain;

A third transistor having a third gate configured to be coupled to the drain of the second transistor, a third source configured to receive the first voltage, and a third drain configured to be coupled to the first drain of the first transistor;

A fourth transistor having a fourth gate configured to be coupled to the drain of the first transistor, a fourth source configured to receive a first voltage, and a fourth drain configured to be coupled to the second drain of the first transistor;

A fifth transistor having a fifth gate configured to receive the second voltage detection signal, a fifth source configured to receive the first voltage, and a fifth drain configured to be coupled to a node to which the second and fourth transistors are commonly coupled;

An inverter configured to have an input terminal coupled to a node to which the second, fourth, and fifth transistors are commonly coupled, and to have an output terminal to output the power control signal; and

a capacitor configured to have one terminal coupled to an output terminal of the inverter and configured to have the other terminal coupled to the ground terminal.

15. a semiconductor device, comprising:

a first voltage detection circuit configured to enable a first voltage detection signal when a voltage level of the first voltage becomes higher than a first set voltage level;

A second voltage detection circuit configured to enable a second voltage detection signal when the first voltage detection signal is enabled and a voltage level of a second voltage becomes higher than a second set voltage level, and to disable the second voltage detection signal when the voltage level of the first voltage becomes higher than the first set voltage level and the second voltage is lower than the second set voltage level; and

A storage and output circuit configured to enable the current control signal when the second voltage detection signal is enabled, and to generate a power control signal by latching the enabled second voltage detection signal.

16. The semiconductor device according to claim 15, wherein the second voltage detection circuit comprises:

a current sink circuit configured to lower a voltage level of an input node of an inverter by leaking a current from the input node in response to voltage levels of the first voltage detection signal and the second voltage;

a current source circuit configured to: raising a voltage level of the input node by passing a current to the input node when the voltage level of the first voltage is higher than the first set voltage level and the voltage level of the second voltage is lower than the second set voltage level; and

An inverter configured to receive a voltage level of the input node and output the second voltage detection signal.

17. A semiconductor device, comprising:

A data input/output circuit configured to operate by receiving a first voltage;

A core circuit configured to operate by receiving a second voltage; and

A control circuit configured to output a power control signal for activating the data input/output circuit when the first voltage is higher than a first set voltage and the second voltage is higher than a second set voltage.

18. The semiconductor device according to claim 17, wherein the control circuit is configured to decrease the second voltage after outputting the power control signal.

Technical Field

Various embodiments relate generally to semiconductor integrated circuits, and more particularly, to semiconductor devices.

Background

A semiconductor device for transmitting/receiving a larger amount of data at a high speed has been developed.

in order to normally transmit/receive a larger amount of data at high speed, the semiconductor device is designed such that a voltage used therein is divided into a voltage used by a circuit which transmits/receives data and a voltage used by a circuit which does not transmit/receive data.

Semiconductor devices are designed to operate based on voltages received from multiple voltage sources and are developed to reduce the energy consumption used therein.

Disclosure of Invention

In one embodiment, a semiconductor apparatus may include a first voltage detection circuit configured to generate a first voltage detection signal in response to a voltage level of a first voltage, a current control signal, and a second voltage detection signal; and a storage and output circuit configured to generate the power control signal and the current control signal in response to the voltage detection signal.

In one embodiment, a semiconductor apparatus may include: a first voltage detection circuit configured to enable a first voltage detection signal when a voltage level of the first voltage becomes higher than a first set voltage level; a second voltage detection circuit configured to enable the second voltage detection signal when the first voltage detection signal is enabled and a voltage level of the second voltage becomes higher than a second set voltage level, and configured to disable the second voltage detection signal in response to the current control signal; and a storage and output circuit configured to enable the current control signal when the second voltage detection signal is enabled, and configured to generate the power control signal by latching the enabled second voltage detection signal.

In one embodiment, a semiconductor apparatus may include: a first voltage detection circuit configured to enable a first voltage detection signal when a voltage level of the first voltage becomes higher than a first set voltage level; a second voltage detection circuit configured to enable the second voltage detection signal when the first voltage detection signal is enabled and a voltage level of the second voltage becomes higher than a second set voltage level, and to disable the second voltage detection signal when the voltage level of the first voltage becomes higher than the first set voltage level and the second voltage is lower than the second set voltage level; and a storage and output circuit configured to enable the current control signal when the second voltage detection signal is enabled, and to generate the power control signal by latching the enabled second voltage detection signal.

In one embodiment, a semiconductor apparatus may include: a data input/output circuit configured to operate by receiving a first voltage; a core circuit configured to operate by receiving a second voltage; and a control circuit configured to output a power control signal for activating the data input/output circuit when the first voltage is higher than the first set voltage and the second voltage is higher than the second set voltage.

Drawings

fig. 1 is a configuration diagram showing a semiconductor device according to an embodiment.

Fig. 2 is a configuration diagram showing the control circuit of fig. 1.

Fig. 3 is a configuration diagram showing the first voltage detection circuit of fig. 2.

Fig. 4 is a configuration diagram showing the second voltage detection circuit of fig. 2.

Fig. 5 is a configuration diagram showing the storage and output circuit of fig. 2.

Fig. 6 is a timing chart for describing the operation of the control circuit of fig. 2.

Fig. 7 is a configuration diagram showing a control circuit according to another embodiment of fig. 1.

Fig. 8 is a configuration diagram showing the second voltage detection circuit of fig. 7.

Fig. 9 is a configuration diagram showing the storage and output circuit of fig. 7.

fig. 10 is a timing chart for describing the operation of the control circuit of fig. 7.

Detailed Description

Hereinafter, a semiconductor device according to the present disclosure will be described below with reference to the accompanying drawings by way of exemplary embodiments.

Various embodiments relate to a semiconductor device capable of reducing power consumption.

As shown in fig. 1, a semiconductor device 1000 according to an embodiment may include a plurality of control circuits 100, a plurality of data input/output circuits 200, and a core circuit 300.

Each control circuit 100 may detect a first voltage used in the core circuit 300 and a second voltage used in the data input/output circuit 200. Each control circuit 100 may activate or deactivate the data input/output circuit 200. For example, when both the first and second voltages become equal to or higher than the set voltage level, each control circuit 100 may activate a plurality of data input/output circuits 200. On the other hand, when either one of the first and second voltages becomes lower than the set voltage level, each control circuit 100 may deactivate the plurality of data input/output circuits 200.

the plurality of data input/output circuits 200 may be activated to transmit data output from the core circuit 300 or receive data to be input to the core circuit 300. On the other hand, the plurality of data input/output circuits 200 may be deactivated to convert the state of the output node into a high impedance state.

The core circuit 300 may be configured to store data transferred from the plurality of data input/output circuits 200 or transfer data stored therein to the plurality of data input/output circuits 200.

Fig. 2 is a configuration diagram showing one control circuit 100 among the plurality of control circuits 100 shown in fig. 1.

As shown in fig. 2, the control circuit 100 may include a first voltage detection circuit 110, a second voltage detection circuit 120, and a storage and output circuit 130.

The first voltage detection circuit 110 may generate the first voltage detection signal D _ s1 in response to the voltage level of the first voltage VCCQ. For example, when the voltage level of the first voltage VCCQ becomes equal to or higher than the first set voltage level, the first voltage detection circuit 110 may enable the first voltage detection signal D _ s1 at a high level. On the other hand, when the voltage level of the first voltage VCCQ is lower than the first set voltage level, the first voltage detection circuit 110 may disable the first voltage detection signal D _ s1 at a low level.

the second voltage detection circuit 120 may generate a second voltage detection signal D _ s2 in response to the first voltage detection signal D _ s1, the current control signal I _ c, and the second voltage VDD. For example, when the first voltage detection signal D _ s1 is enabled and the voltage level of the second voltage VDD becomes equal to or higher than the second set voltage level, the second voltage detection circuit 120 may enable the second voltage detection signal D _ s2 at a high level. On the other hand, when the first voltage detection signal D _ s1 is disabled, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level. When the current control signal I _ c is enabled at a high level, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level. In addition, when the current control signal I _ c is enabled at a high level, the second voltage detection circuit 120 may reduce its power or current consumption.

The storage and output circuit 130 may generate the power control signal IO _ pc in response to the second voltage detection signal D _ s 2. For example, when the second voltage detection signal D _ s2 is enabled, the storage and output circuit 130 may enable the current control signal I _ c, latch the enabled second voltage detection signal D _ s2, and output the latched signal as the power control signal IO _ pc. On the other hand, when the second voltage detection signal D _ s2 is disabled, the storage and output circuit 130 may disable the current control signal I _ c and disable the power control signal IO _ pc at a low level.

At this time, the first voltage VCCQ may be supplied to the plurality of data input/output circuits 200 of fig. 1, and the second voltage VDD may be supplied to the core circuit 300 of fig. 1. The power control signal IO _ pc may be input to the plurality of data input/output circuits 200. The plurality of data input/output circuits 200 may be activated when the power control signal IO _ pc is enabled, and the plurality of data input/output circuits 200 may be deactivated when the power control signal IO _ pc is disabled.

Fig. 3 is a configuration diagram illustrating the first voltage detection circuit 110 of fig. 2.

As shown in fig. 3, the first voltage detection circuit 110 may include a first transistor P1, a first capacitor C1, and a second capacitor C2. The first voltage detection circuit 110 may be further configured to perform a first inversion operation and a second inversion operation. For example, the first voltage detection circuit 110 may include a first inverter IV1 and a second inverter IV 2.

The first transistor P1 may have a source configured to receive a first voltage VCCQ, and a drain and a gate commonly coupled to the first node N _ a.

the first capacitor C1 may have one terminal coupled to the first node N _ a and the other terminal coupled to the ground terminal VSS.

The first inverter IV1 may have an input terminal coupled to the first node N _ a.

The second inverter IV2 may have an input terminal coupled to the output terminal of the first inverter IV1 and an output terminal configured to output the first voltage detection signal D _ s 1.

The second capacitor C2 may have one terminal coupled to the output terminal of the second inverter IV2, and the other terminal coupled to the ground terminal VSS.

fig. 4 is a configuration diagram illustrating the second voltage detection circuit 120 of fig. 2.

As shown in fig. 4, the second voltage detection circuit 120 may include a first current source circuit 121, a first current sink (sink) circuit 122, a second current source circuit 123, a third current source circuit 124, and a third capacitor C3. The second voltage detection circuit 120 may be further configured to perform a third inversion operation. For example, the second voltage detection circuit 120 may include a third inverter IV 3.

The first current source circuit 121 may supply a current to the second node N _ B in response to the current control signal I _ c. For example, when the current control signal I _ c is disabled at a low level, the first current source circuit 121 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B. On the other hand, when the current control signal I _ c is enabled at a high level, the first current source circuit 121 may stop supplying the current to the second node N _ B.

The first current source circuit 121 may include a third capacitor C3, a second transistor P2, and a resistor R.

the third capacitor C3 may have one terminal coupled to the gate of the second transistor P2 and the other terminal coupled to the ground terminal VSS.

the second transistor P2 may have a gate configured to receive the current control signal I _ c, a source configured to receive the first voltage VCCQ, and a drain coupled to one terminal of the resistor R.

The resistor R may have one terminal coupled to the drain of the second transistor P2 and the other terminal coupled to the second node N _ B.

When the first voltage detection signal D _ s1 is enabled and the voltage level of the second voltage VDD becomes equal to or higher than the second set voltage level, the first current sink circuit 122 may lower the voltage level of the second node N _ B by transferring the current of the second node N _ B to the ground terminal VSS.

The first current sink circuit 122 may include third and fourth transistors N1 and N2.

the third transistor N1 may have a gate configured to receive the first voltage detection signal D _ s1 and a drain coupled to the second node N _ B.

the fourth transistor N2 may have a gate configured to receive the second voltage VDD, a drain coupled to the source of the third transistor N1, and a source coupled to the ground terminal VSS.

When the first voltage detection signal D _ s1 is disabled, the second current source circuit 123 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

the second current source circuit 123 may include a fifth transistor P3.

The fifth transistor P3 may have a gate configured to receive the first voltage detection signal D _ s1, a source configured to receive the first voltage VCCQ, and a drain coupled to the second node N _ B.

When the current control signal I _ c is enabled, the third current source circuit 124 may lower the voltage level of the second node N _ B by transferring the current of the second node N _ B to the ground terminal VSS.

The third current source circuit 124 may include a sixth transistor N3.

The sixth transistor N3 may have a gate configured to receive the current control signal I _ c, a drain coupled to the second node N _ B, and a source configured to receive the first voltage VCCQ.

The fourth capacitor C4 may have one terminal configured to receive the first voltage VCCQ and another terminal coupled to the second node N _ B.

The third inverter IV3 may invert the voltage level of the second node N _ B and output the inverted voltage level as the second voltage detection signal D _ s 2. The third inverter IV3 may have an input terminal coupled to the second node N _ B and an output terminal configured to output the second voltage detection signal D _ s 2. Therefore, the second node N _ B may serve as an input node of the third inverter IV 3.

Fig. 5 is a configuration diagram illustrating the storage and output circuit 130 of fig. 2.

as shown in fig. 5, the storage and output circuit 130 may include a control signal generation circuit 131, a switch 132, a latch circuit 133, a fifth capacitor C5, and a power control signal output circuit 134.

when the second voltage detection signal D _ s2 is enabled, the control signal generation circuit 131 may enable the switch control signal SW _ c and the current control signal I _ c. For example, when the second voltage detection signal D _ s2 is enabled, the control signal generation circuit 131 may enable the switch control signal SW _ c for a preset time. Further, the control signal generation circuit 131 may enable the current control signal I _ c when the second voltage detection signal D _ s2 is enabled, and disable the current control signal I _ c when the second voltage detection signal D _ s2 is disabled. When enabled by the second voltage detection signal D _ s2, the switch control signal SW _ c may be disabled after maintaining the enabled state for a preset time.

The term "preset" as used herein with respect to a parameter (e.g., a preset time) means to determine the value of the parameter before the parameter is used in a process or algorithm. For some embodiments, the values of the parameters are determined before the process or algorithm begins. In other embodiments, the values of the parameters are determined during the process or algorithm, but before the parameters are used in the process or algorithm.

The control signal generation circuit 131 may include a schmitt trigger circuit 131-1, a first delay circuit 131-2, and a second delay circuit 131-2. The control signal generation circuit 131 may also be configured to perform an and operation. For example, the control signal generation circuit 131 may include an AND gate AND.

The schmitt trigger circuit 131-1 may generate a high-level output signal when the voltage level of the second voltage detection signal D _ s2 becomes higher than a preset voltage level or the second voltage detection signal D _ s2 is enabled at a high level. On the other hand, the schmitt trigger circuit 131-1 may generate a low level output signal when the voltage level of the second voltage detection signal D _ s2 becomes lower than the preset voltage level or the second voltage detection signal D _ s2 is disabled at a low level.

The first delay circuit 131-2 may delay and invert an output signal of the schmitt trigger circuit 131-1 and output the delayed and inverted signal.

the second delay circuit 131-3 may delay and invert the output signal of the first delay circuit 131-2 and output the delayed and inverted signal as the current control signal I _ c.

The AND gate AND may receive output signals of the schmitt trigger circuit 131-1 AND the first delay circuit 131-2 AND generate the switch control signal SW _ c. For example, the AND gate AND may generate the switch control signal SW _ c that is enabled at a high level only during a period in which both the output signals of the schmitt trigger circuit 131-1 AND the first delay circuit 131-2 are at a high level. At this time, the enable period of the switch control signal SW _ c may be equal to the delay time of the first delay circuit 131-2.

when the switch control signal SW _ c is enabled, the switch 132 may output the second voltage detection signal D _ s2 as the latch inverted signal L _ sb. On the other hand, when the switch control signal SW _ c is disabled, the switch 132 may stop the operation of outputting the second voltage detection signal D _ s2 as the latch inverted signal L _ sb.

The latch circuit 133 may latch and invert the latch inversion signal L _ sb and output the latched and inverted signal as a latch signal L _ s.

The latch circuit 133 may be configured to perform the fourth and fifth inverting operations. For example, the latch circuit 133 may include fourth and fifth inverters IV4 and IV 5.

The fourth inverter IV4 may receive the latch inverted signal L _ sb, invert the received signal, and output the inverted signal as the latch signal L _ s.

The fifth inverter IV5 may receive the output signal of the fourth inverter IV4, invert the received signal, and output the inverted signal as an input signal of the fourth inverter IV 4.

at this time, the fifth capacitor C5 may be coupled to the node to which the switch 132 and the latch circuit 133 are coupled. The fifth capacitor C5 may have one terminal coupled to the node to which the switch 132 and the latch circuit 133 are coupled, and the other terminal coupled to the ground terminal VSS. The switch 132 may transmit the second voltage detection signal D _ s2 to the latch circuit 133 when the switch control signal SW _ c is enabled, and the switch 132 may electrically separate the second voltage detection signal D _ s2 from the latch circuit 133 when the switch control signal SW _ c is disabled.

The power control signal output circuit 134 may be configured to perform a sixth inversion operation. For example, the power control signal output circuit 134 may include seventh to eleventh transistors N4, N5, and P4 to P6, a sixth inverter IV6, and a sixth capacitor C6.

the seventh transistor N4 may have a gate configured to receive the latch signal L _ s and a source coupled to the ground terminal VSS.

The eighth transistor N5 may have a gate configured to receive the latched inverted signal L _ sb and a source coupled to the ground terminal VSS.

The ninth transistor P4 may have a gate coupled to the drain of the eighth transistor N5, a source configured to receive the first voltage VCCQ, and a drain coupled to the drain of the seventh transistor N4.

The tenth transistor P5 may have a gate coupled to the drain of the seventh transistor N4, a source configured to receive the first voltage VCCQ, and a drain coupled to the drain of the eighth transistor N5.

the eleventh transistor P6 may have a gate configured to receive the second voltage detection signal D _ s2, a source configured to receive the first voltage VCCQ, and a drain coupled to a node to which the eighth and tenth transistors N5 and P5 are commonly coupled.

The sixth inverter IV6 may have an input terminal coupled to a node to which the eighth, tenth, and eleventh transistors N5, P5, and P6 are commonly coupled, and an output terminal configured to output a power control signal IO _ pc.

The sixth capacitor C6 may have one terminal coupled to the output terminal of the sixth inverter IV6 and the other terminal coupled to the ground terminal VSS.

Referring to fig. 2 to 6, a semiconductor device having the above-described configuration according to the present embodiment will be described as follows.

Referring to fig. 3, the operation of the first voltage detection circuit 110 will be described.

When the voltage level of the first voltage VCCQ becomes higher than the first set voltage level, the first transistor P1 may be turned on to raise the voltage level of the first node N _ a. The voltage level of the first node N _ a passing through the first and second inverters IV1 and IV2 may be output as the first voltage detection signal D _ s 1.

Therefore, when the voltage level of the first voltage VCCQ becomes higher than the first set voltage level, the first voltage detection circuit 110 may enable the first voltage detection signal D _ s1 at a high level.

referring to fig. 4, the operation of the second voltage detecting circuit 120 will be described.

when the current control signal I _ c is disabled at a low level, the first current source circuit 121 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

When the first voltage detection signal D _ s1 is enabled at a high level and the voltage level of the second voltage VDD becomes higher than the second set voltage level, the first current sink circuit 122 may lower the voltage level of the second node N _ B by transferring the current of the second node N _ B to the ground terminal VSS.

When the first voltage detection signal D _ s1 is disabled at a low level, the second current source circuit 123 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

When the current control signal I _ c is enabled at a high level, the third current source circuit 124 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

The third inverter IV3 may invert the voltage level of the second node N _ B and output the inverted voltage level as the second voltage detection signal D _ s 2.

accordingly, when the first voltage detection signal D _ s1 is enabled at a high level and the voltage level of the second voltage VDD becomes higher than the second set voltage level, the second voltage detection circuit 120 may enable the second voltage detection signal D _ s2 at a high level. On the other hand, when the first voltage detection signal D _ s1 is disabled at a low level or the current control signal I _ c is enabled at a high level, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level.

Referring to fig. 5, the operation of the storage and output circuit 130 will be described.

The second voltage detection signal D _ s2 may be delayed by the delay times of the first and second delay circuits 131-2 and 131-3 and output as the current control signal I _ c.

When the second voltage detection signal D _ s2 is enabled, the switch control signal SW _ c having an enable period corresponding to the delay time of the first delay circuit 131-2 may be generated.

During the enable period of the switch control signal SW _ c, the second voltage detection signal D _ s2 may be input to the latch circuit 133.

The latch circuit 133 may latch the second voltage detection signal D _ s2 and output a latched signal as a latch signal L _ s and a latch inverted signal L _ sb. At this time, the latch signal L _ s and the latch inverted signal L _ sb may have opposite levels from each other.

when the latch signal L _ s is enabled at a high level, the power control signal output circuit 134 may output the power control signal IO _ pc disabled at a low level. On the other hand, when the latch signal L _ s is disabled at the low level, the power control signal output circuit 134 may output the power control signal IO _ pc enabled at the high level. Further, when the second voltage detection signal D _ s2 is disabled at a low level, the power control signal output circuit 134 may output the power control signal IO _ pc disabled at a low level.

Accordingly, when the second voltage detection signal D _ s2 is enabled at a high level, the storage and output circuit 130 may output the current control signal I _ c and the power control signal IO _ pc which are enabled at a high level. When the second voltage detection signal D _ s2 is disabled at a low level, the storage and output circuit 130 may output the current control signal I _ c and the power control signal IO _ pc disabled at a low level.

When the first voltage VCCQ becomes higher than the first set voltage level and the second voltage VDD becomes higher than the second set voltage level as shown in the timing diagram of fig. 6, the control circuit 100 including the first voltage detection circuit 110, the second voltage detection circuit 120, and the storage and output circuit 130 operating as described above may enable the power control signal IO _ pc at a high level. On the other hand, when the voltage level of the first voltage VCCQ becomes lower than the first set voltage level, the control circuit 100 may disable the power control signal IO _ pc at a low level.

The data input/output circuit 200 of fig. 1 may be activated only during an enable period of the power control signal IO _ pc and input/output data.

Fig. 7 is a configuration diagram showing one control circuit 100 among the plurality of control circuits 100 shown in fig. 1, which shows a different embodiment from the control circuit of fig. 2.

As shown in fig. 7, the control circuit 100 may include a first voltage detection circuit 110, a second voltage detection circuit 120, and a storage and output circuit 130.

The first voltage detection circuit 110 may generate the first voltage detection signal D _ s1 in response to the voltage level of the first voltage VCCQ. For example, when the voltage level of the first voltage VCCQ becomes equal to or higher than the first set voltage level, the first voltage detection circuit 110 may enable the first voltage detection signal D _ s1 at a high level. On the other hand, when the voltage level of the first voltage VCCQ is lower than the first set voltage level, the first voltage detection circuit 110 may disable the first voltage detection signal D _ s1 at a low level.

The second voltage detection circuit 120 may generate a second voltage detection signal D _ s2 in response to the first voltage detection signal D _ s1, the current control signal I _ c, and the first and second voltages VCCQ and VDD. For example, when the first voltage detection signal D _ s1 is enabled and the voltage level of the second voltage VDD becomes equal to or higher than the second set voltage level, the second voltage detection circuit 120 may enable the second voltage detection signal D _ s2 at a high level. On the other hand, when the first voltage detection signal D _ s1 is disabled, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level. When the second voltage VDD is equal to or lower than the preset voltage level, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level. In addition, when the current control signal I _ c is enabled at a high level, the second voltage detection circuit 120 may reduce its power or current consumption.

The storage and output circuit 130 may generate the power control signal IO _ pc in response to the voltage levels of the second voltage detection signal D _ s2 and the second voltage VDD. For example, when the second voltage detection signal D _ s2 is enabled and the voltage level of the second voltage VDD is higher than the preset voltage level, the storage and output circuit 130 may enable the current control signal I _ c, latch the enabled second voltage detection signal D _ s2, and output the latched signal as the power control signal IO _ pc. On the other hand, when the second voltage detection signal D _ s2 is disabled or the voltage level of the second voltage VDD becomes lower than the preset voltage level, the storage and output circuit 130 may disable the current control signal I _ c and disable the power control signal IO _ pc at a low level.

At this time, the first voltage VCCQ may be supplied to the plurality of data input/output circuits 200 of fig. 1, and the second voltage VDD may be supplied to the core circuit 300 of fig. 1. The power control signal IO _ pc may be input to the plurality of data input/output circuits 200. The plurality of data input/output circuits 200 may be activated when the power control signal IO _ pc is enabled, and the plurality of data input/output circuits 200 are deactivated when the power control signal IO _ pc is deactivated.

Since the first voltage detection circuit 110 of fig. 7 may be configured in the same manner as the first voltage detection circuit 110 of fig. 2, the description of the configuration of the first voltage detection circuit 110 of fig. 7 may be replaced with the description of the configuration of the first voltage detection circuit 110 of fig. 2.

Fig. 8 is a configuration diagram illustrating the second voltage detection circuit 120 of fig. 7.

As shown in fig. 8, the second voltage detection circuit 120 may include a first current source circuit 121, a first current sink circuit 122, a second current source circuit 123, a third current source circuit 124, a third capacitor C3, and a third inverter IV 3.

The first current source circuit 121 may supply a current to the second node N _ B in response to the current control signal I _ c. For example, when the current control signal I _ c is disabled at a low level, the first current source circuit 121 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B. On the other hand, when the current control signal I _ c is enabled at a high level, the first current source circuit 121 may stop supplying the current to the second node N _ B.

The first current source circuit 121 may include a third capacitor C3, a second transistor P2, and a resistor R.

The third capacitor C3 may have one terminal coupled to the gate of the second transistor P2 and the other terminal coupled to the ground terminal VSS.

The second transistor P2 may have a gate configured to receive the current control signal I _ c, a source configured to receive the first voltage VCCQ, and a drain coupled to one terminal of the resistor R.

The resistor R may have one terminal coupled to the drain of the second transistor P2 and the other terminal coupled to the second node N _ B.

When the first voltage detection signal D _ s1 is enabled and the voltage level of the second voltage VDD becomes equal to or higher than the second set voltage level, the first current sink circuit 122 may lower the voltage level of the second node N _ B by transferring the current of the second node N _ B to the ground terminal VSS.

The first current sink circuit 122 may include third and fourth transistors N1 and N2.

The third transistor N1 may have a gate configured to receive the first voltage detection signal D _ s1 and a drain coupled to the second node N _ B.

The fourth transistor N2 may have a gate configured to receive the second voltage VDD, a drain coupled to the source of the third transistor N1, and a source coupled to the ground terminal VSS.

When the first voltage detection signal D _ s1 is disabled, the second current source circuit 123 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

the second current source circuit 123 may include a fifth transistor P3.

The fifth transistor P3 may have a gate configured to receive the first voltage detection signal D _ s1, a source configured to receive the first voltage VCCQ, and a drain coupled to the second node N _ B.

When the voltage level of the first voltage VCCQ becomes higher than the first set voltage level and the voltage level of the second voltage VDD is lower than the second set voltage level, the third current source circuit 124 may raise the voltage level of the second node N _ B by applying a current to the second node N _ B. When the voltage level of the second voltage VDD is higher than the second set voltage level, the third current source circuit 124 may interrupt the current applied to the second node N _ B.

The third current source circuit 124 may be configured to perform a fourth inversion operation. For example, the third current source circuit 124 may include a sixth transistor N3, a seventh transistor P4, and a fourth inverter IV 4.

The sixth transistor N3 may have a gate configured to receive the output signal of the fourth inverter IV4, a drain coupled to the second node N _ B, and a source configured to receive the first voltage VCCQ.

The seventh transistor P4 may have a source configured to receive the first voltage VCCQ, and a gate and a drain coupled in common.

the fourth inverter IV4 may have an input terminal configured to receive the second voltage VDD and a voltage terminal coupled to the drain of the seventh transistor P4.

The fourth capacitor C4 may have one terminal configured to receive the first voltage VCCQ and another terminal coupled to the second node N _ B.

The third inverter IV3 may invert the voltage level of the second node N _ B and output the inverted voltage level as the second voltage detection signal D _ s 2. The third inverter IV3 may have an input terminal coupled to the second node N _ B and an output terminal configured to output the second voltage detection signal D _ s 2.

Fig. 9 is a configuration diagram illustrating the storage and output circuit 130 of fig. 7.

As shown in fig. 9, the storage and output circuit 130 may include a control signal generation circuit 131, a switch 132, a latch circuit 133, a fifth capacitor C5, and a power control signal output circuit 134.

When the second voltage detection signal D _ s2 is enabled, the control signal generation circuit 131 may enable the switch control signal SW _ c and the current control signal I _ c. For example, when the second voltage detection signal D _ s2 is enabled, the control signal generation circuit 131 may enable the switch control signal SW _ c for a preset time. Further, the control signal generation circuit 131 may enable the current control signal I _ c when the second voltage detection signal D _ s2 is enabled, and disable the current control signal I _ c when the second voltage detection signal D _ s2 is disabled. When enabled by the second voltage detection signal D _ s2, the switch control signal SW _ c may be disabled after maintaining the enabled state for a preset time.

The control signal generation circuit 131 may include a schmitt trigger circuit 131-1, a first delay circuit 131-2, and a second delay circuit 131-2. The control signal generation circuit 131 may also be configured to perform an and operation. For example, the control signal generation circuit 131 may include an AND gate AND.

The schmitt trigger circuit 131-1 may generate a high-level output signal when the voltage level of the second voltage detection signal D _ s2 becomes higher than a preset voltage level or the second voltage detection signal D _ s2 is enabled at a high level. On the other hand, the schmitt trigger circuit 131-1 may generate a low level output signal when the voltage level of the second voltage detection signal D _ s2 becomes lower than the preset voltage level or the second voltage detection signal D _ s2 is disabled at a low level.

The first delay circuit 131-2 may delay and invert an output signal of the schmitt trigger circuit 131-1 and output the delayed and inverted signal.

The second delay circuit 131-3 may delay and invert the output signal of the first delay circuit 131-2 and output the delayed and inverted signal as the current control signal I _ c.

The AND gate AND may receive output signals of the schmitt trigger circuit 131-1 AND the first delay circuit 131-2 AND generate the switch control signal SW _ c. For example, the AND gate AND may generate the switch control signal SW _ c that is enabled at a high level only during a period in which both the output signals of the schmitt trigger circuit 131-1 AND the first delay circuit 131-2 are at a high level. At this time, the enable period of the switch control signal SW _ c may be equal to the delay time of the first delay circuit 131-2.

When the switch control signal SW _ c is enabled, the switch 132 may output the second voltage detection signal D _ s2 as the latch inverted signal L _ sb. On the other hand, when the switch control signal SW _ c is disabled, the switch 132 may stop the operation of outputting the second voltage detection signal D _ s2 as the latch inverted signal L _ sb.

The latch circuit 133 may latch and invert the latch inversion signal L _ sb and output the latched and inverted signal as a latch signal L _ s.

The latch circuit 133 may be configured to perform the fourth and fifth inverting operations. For example, the latch circuit 133 may include fourth and fifth inverters IV4 and IV 5.

The fourth inverter IV4 may receive the latch inverted signal L _ sb, invert the received signal, and output the inverted signal as the latch signal L _ s.

The fifth inverter IV5 may receive the output signal of the fourth inverter IV4, invert the received signal, and input the inverted signal as an input signal of the fourth inverter IV 4.

At this time, the fifth capacitor C5 may be coupled to the node to which the switch 132 and the latch circuit 133 are coupled. The fifth capacitor C5 may have one terminal coupled to the node to which the switch 132 and the latch circuit 133 are coupled, and the other terminal coupled to the ground terminal VSS. The switch 132 may transmit the second voltage detection signal D _ s2 to the latch circuit 133 when the switch control signal SW _ c is enabled, and the switch 132 may electrically separate the second voltage detection signal D _ s2 from the latch circuit 133 when the switch control signal SW _ c is disabled.

The power control signal output circuit 134 may be configured to perform a sixth inversion operation. For example, the power control signal output circuit 134 may include eighth to fourteenth transistors N4 to N7 and P4 to P6, a sixth inverter IV6, and a sixth capacitor C6.

The eighth transistor N4 may have a gate configured to receive the second voltage VDD.

The ninth transistor N5 may have a gate configured to receive the second voltage VDD.

the tenth transistor N6 may have a gate configured to receive the latch signal L _ s, a source coupled to the ground terminal VSS, and a drain coupled to the source of the eighth transistor N4.

The eleventh transistor N7 may have a gate configured to receive the latch inverted signal L _ sb, a source coupled to the ground terminal VSS, and a drain coupled to the source of the ninth transistor N5.

The twelfth transistor P5 may have a gate coupled to the drain of the ninth transistor N5, a source configured to receive the first voltage VCCQ, and a drain coupled to the drain of the eighth transistor N4.

The thirteenth transistor P6 may have a gate coupled to the drain of the eighth transistor N4, a source configured to receive the first voltage VCCQ, and a drain coupled to the drain of the ninth transistor N5.

The fourteenth transistor P7 may have a gate configured to receive the second voltage detection signal D _ s2, a source configured to receive the first voltage VCCQ, and a drain coupled to a node to which the ninth and thirteenth transistors N5 and P6 are commonly coupled.

the sixth inverter IV6 may have an input terminal coupled to a node to which the ninth, thirteenth, and fourteenth transistors N5, P6, and P7 are commonly coupled, and an output terminal configured to output a power control signal IO _ pc.

The sixth capacitor C6 may have one terminal coupled to the output terminal of the sixth inverter IV6 and the other terminal coupled to the ground terminal VSS.

Referring to fig. 7 to 10, a semiconductor device having the above-described configuration according to the present embodiment will be described as follows.

Referring to fig. 3, the operation of the first voltage detection circuit 110 will be described.

When the voltage level of the first voltage VCCQ becomes higher than the first set voltage level, the first transistor P1 may be turned on to raise the voltage level of the first node N _ a. The voltage level of the first node N _ a passing through the first and second inverters IV1 and IV2 may be output as the first voltage detection signal D _ s 1.

Therefore, when the voltage level of the first voltage VCCQ becomes higher than the first set voltage level, the first voltage detection circuit 110 may enable the first voltage detection signal D _ s1 at a high level.

Referring to fig. 8, the operation of the second voltage detecting circuit 120 will be described.

When the current control signal I _ c is disabled at a low level, the first current source circuit 121 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

when the first voltage detection signal D _ s1 is enabled at a high level and the voltage level of the second voltage VDD becomes higher than the second set voltage level, the first current sink circuit 122 may lower the voltage level of the second node N _ B by transferring the current of the second node N _ B to the ground terminal VSS.

When the first voltage detection signal D _ s1 is disabled at a low level, the second current source circuit 123 may raise the voltage level of the second node N _ B by supplying a current to the second node N _ B.

when the voltage level of the first voltage VCCQ becomes higher than the first set voltage level and the voltage level of the second voltage VDD becomes lower than the second set voltage level, the third current source circuit 124 may raise the voltage level of the second node N _ B by applying a current to the second node N _ B. When the voltage level of the second voltage VDD becomes higher than the second set voltage level, the third current source circuit 124 may interrupt the current applied to the second node N _ B.

The third inverter IV3 may invert the voltage level of the second node N _ B and output the inverted voltage level as the second voltage detection signal D _ s 2.

Accordingly, when the first voltage detection signal D _ s1 is enabled at a high level and the voltage level of the second voltage VDD becomes higher than the second set voltage level, the second voltage detection circuit 120 may enable the second voltage detection signal D _ s2 at a high level. On the other hand, when the first voltage detection signal D _ s1 is disabled at a low level or the current control signal I _ c is disabled at a low level, the second voltage detection circuit 120 may disable the second voltage detection signal D _ s2 at a low level.

referring to fig. 9, the operation of the storage and output circuit 130 will be described.

the second voltage detection signal D _ s2 may be delayed by the delay times of the first and second delay circuits 131-2 and 131-3 and output as the current control signal I _ c.

When the second voltage detection signal D _ s2 is enabled, the switch control signal SW _ c having an enable period corresponding to the delay time of the first delay circuit 131-2 may be generated.

During the enable period of the switch control signal SW _ c, the second voltage detection signal D _ s2 may be input to the latch circuit 133.

The latch circuit 133 may latch the second voltage detection signal D _ s2 and output a latched signal as a latch signal L _ s and a latch inverted signal L _ sb. At this time, the latch signal L _ s and the latch inverted signal L _ sb may have opposite levels from each other.

When the latch signal L _ s is enabled at a high level or the second voltage VDD becomes lower than a preset voltage level, the power control signal output circuit 134 may output the power control signal IO _ pc disabled at a low level. On the other hand, when the latch signal L _ s is disabled at a low level or the second voltage VDD becomes higher than the preset voltage level, the power control signal output circuit 134 may output the power control signal IO _ pc enabled at a high level. Further, when the second voltage detection signal D _ s2 is disabled at a low level, the power control signal output circuit 134 may output the power control signal IO _ pc disabled at a low level.

Accordingly, when the second voltage VDD is higher than the preset voltage level and the second voltage detection signal D _ s2 is enabled at a high level, the storage and output circuit 130 may output the current control signal I _ c and the power control signal IO _ pc which are enabled at a high level. When the second voltage detection signal D _ s2 is disabled at a low level or the second voltage VDD is lower than a preset voltage level, the storage and output circuit 130 may output the current control signal I _ c and the power control signal IO _ pc disabled at a low level.

When the first power supply-time voltage VCCQ becomes higher than the first set voltage level and the second voltage VDD becomes higher than the second set voltage level as shown in the timing chart of fig. 10, the control circuit 100 including the first voltage detection circuit 110, the second voltage detection circuit 120, and the storage and output circuit 130 operating as described above may enable the power control signal IO _ pc at a high level. On the other hand, when the voltage level of the first voltage VCCQ becomes lower than the first set voltage level or the second voltage VDD becomes lower than the second set voltage level, the control circuit 100 may disable the power control signal IO _ pc at a low level.

The data input/output circuit 200 of fig. 1 may be activated only in an enable period of the power control signal IO _ pc and input/output data.

The control circuit shown in fig. 2 and 3 may activate the data input/output circuit only when both the first and second voltages become higher than the set voltage level. The control circuit of fig. 2 may deactivate the data input/output circuit when the first voltage becomes lower than a preset voltage level, and the control circuit of fig. 3 may deactivate the data input/output circuit when any one of the first and second voltages becomes lower than the preset voltage level.

The semiconductor device according to the present embodiment can reduce power consumption.

While various embodiments have been described above, those skilled in the art will appreciate that the described embodiments are merely examples. Accordingly, the method of operation of the data storage device described herein should not be limited based on the described embodiments.