SEMICONDUCTOR DEVICE AND MEMORY SYSTEM

摘要

According to one embodiment, there is provided a semiconductor device including a temperature detection circuit, a first register, a second register, and a selector. The temperature detection circuit is configured to output a first level when the temperature exceeds the detection temperature from under the detection temperature, and output a second level when the temperature decreases under the open temperature from above the open temperature. The first register is configured to hold a value to set a first detection temperature into the temperature detection circuit. The second register is configured to hold a value to set a second detection temperature into the temperature detection circuit. The selector is configured to output either the value of the first register or the value of the second register based on an output level of the temperature detection circuit in order to set the detection temperature of the temperature detection circuit.

主权项

1. A semiconductor device comprising:
a temperature detection circuit having a detection temperature which is settable from outside and an open temperature lower than the detection temperature by a hysteresis temperature width depending on a circuit characteristic, the temperature detection circuit being configured to output a first level when the temperature exceeds the detection temperature from under the detection temperature, and output a second level when the temperature decreases under the open temperature from above the open temperature; a first register configured to hold a value to set a first detection temperature into the temperature detection circuit; a second register configured to hold a value to set a second detection temperature into the temperature detection circuit; and a selector configured to output either the value of the first register or the value of the second register based on an output level of the temperature detection circuit in order to set the detection temperature of the temperature detection circuit.