Patent ID: 9401188
Filing Date: 2016-07-26
CPC Classification: G11C

Claim Text:
1. An apparatus, comprising: a peripheral circuit coupled to a memory array and configured to receive a first supply voltage, wherein the peripheral circuit is configured to provide a first signal responsive to a shutdown command from a controller, wherein the peripheral circuit is further configured to provide a second signal that is indicative of the first supply voltage exceeding a threshold; an input/output (I/O) circuit configured to receive a second supply voltage, different from the first supply voltage, wherein the I/O circuit is further configured to receive a control signal and be disabled based on the control signal having a first logical value and enabled based on the control signal having a second logical value; and an enabling circuit coupled to the I/O circuit and the peripheral circuit, the enabling circuit configured to receive at least one of the first and second signals and provide the control signal to the I/O circuit, the control signal having the first logical value responsive to the enabling circuit receiving the first signal, wherein the enabling circuit is further configured to provide the control signal having the second logical value responsive to the enabling circuit receiving the second signal.