Patent ID: 11923017
Assignee: ROHM CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A non-volatile storage device comprising:
a memory configured to store data in a non-volatile manner;
a power supply configured to generate an internal voltage to feed the internal voltage to the memory;
a controller configured to control the memory and the power supply;
an A/D converter configured to perform A/D conversion on the internal voltage; and
a fault detector configured to detect a fault related to data written in the memory based on an output of the A/D converter,
wherein
the fault detector is configured such that, when a deviation of the output of the A/D converter from a set value exceeds a predetermined range, the fault detector detects a first fault as one type of the fault, and
the controller is configured such that, when the fault detector detects the first fault, the controller controls the power supply based on the output of the A/D converter so as to correct the internal voltage in accordance with the deviation of the output of the A/D converter from the set value.