Patent ID: 8861298

Claim:
A semiconductor storage system comprising: a first semiconductor storage device; a second semiconductor storage device; a power supply wiring connected to the first semiconductor storage device, and the second semiconductor storage device as a common connection, the power supply wiring configured to supply power to the first semiconductor storage device, and the second semiconductor storage device; a voltage detection circuit provided in each of the first semiconductor storage device and the second semiconductor storage device, the voltage detection circuit configured to detect a power supply voltage of the power supply wiring; and a control circuit provided in each of the first semiconductor storage device and the second semiconductor storage device, the control circuit configured to not shift an operation of the first semiconductor storage device or the second semiconductor storage device to the next operation until the power supply voltage is restored when lowering of the power supply voltage is detected by a corresponding one of the voltage detection circuits wherein the control circuits of the first semiconductor storage device and the second semiconductor storage device are controlled to return from a state where the lowering of the power supply voltage is detected, by different delay time after recovery of the power supply voltage is detected.