Semiconductor memory device, and data transmitting/receiving system

摘要

A semiconductor memory device includes: a power supply circuit for outputting a power supply voltage used for reading out data; and a power supply circuit status determination circuit for determining whether an operation status of the power supply circuit is such that data can be read out normally. The output of readout data is suppressed while it is determined by the power supply circuit status determination circuit that the operation status is such that data cannot be read out normally.