Memory controller, semiconductor storage device, and memory system including the memory controller and the semiconductor storage device for outputting temperature value in low power consumption mode
View Patent ↗A memory system includes a clock generation circuit, a memory device, and a controller. The memory device includes output circuits and a temperature sensor, the output circuits configured to output data at an output timing obtained based on a clock signal supplied from the clock generation circuit. The controller includes input circuits that receive the data outputted from the memory device at an input timing obtained based on a clock signal supplied from the clock generation circuit and a correction value setting circuit that adjusts the input timing based on a temperature value from the temperature sensor.
1. A semiconductor storage device comprising:
a synchronization circuit that generates a synchronization signal that is in synchronization with an input clock signal;
a plurality of output circuits that are activated in a normal operation mode to output data that has been requested based on the synchronization signal and that are deactivated in a low power consumption mode;
a temperature sensor that detects a temperature of the semiconductor storage device; and
another output circuit capable of outputting a temperature value which is supplied from the temperature sensor in the low power consumption mode.
2. The semiconductor storage device according to claim 1 , wherein
the other output circuit outputs the temperature value to the outside based on a command signal which is supplied from the outside in the low power consumption mode.
3. The semiconductor storage device according to claim 2 , further comprising:
a control circuit that makes the other output circuit output the temperature value, which is supplied from the temperature sensor, to the outside based on a command signal which is supplied from the outside in the low power consumption mode.
4. The semiconductor storage device according to claim 1 , further comprising:
a control circuit that writes the temperature value from the temperature sensor in a register based on a command signal which is supplied from the outside and that makes the other output circuit output the temperature value which is written in the register to the outside.
5. A semiconductor device comprising:
a first output circuit coupled to a first output terminal, the first output circuit being activated in a normal operation mode and being deactivated in a low power consumption mode;
a temperature sensor that detects a temperature thereof; and
a second output circuit coupled to a second output terminal, the second output circuit outputting a value based on the temperature, irrespective of the low power consumption mode.
6. The semiconductor device according to claim 5 , further comprising:
a command input terminal that receives a command signal, and the second output circuit outputting the temperature based on the command signal.
7. The semiconductor device according to claim 5 , further comprising:
a first clock input terminal that receives a first clock signal, and the second output circuit outputting the temperature based on the first clock signal.
8. The semiconductor device according to claim 5 , further comprising:
a second input terminal that receives a second clock signal.
9. The semiconductor device according to claim 8 , further comprising:
a synchronization circuit that generates a synchronization signal based on the second clock signal, and supplying the synchronization signal to the first output circuit.
10. The semiconductor device according to claim 5 , further comprising:
a register that stores a value of the temperature, and the second output circuit outputting the value stored in the register to the second output terminal.
11. The semiconductor device according to claim 5 , further comprising:
wherein the second output circuit outputs the value of the temperature as a serial data to the second output terminal.