| 摘要 |
PURPOSE:To reduce the power consumption for the read mode by outputting data from a sense amplifier in the read mode and using this output to set the sense amplifier to the inactive state. CONSTITUTION:A current mirror type sense amplifying part is provided which detects and amplifies the difference between potentials of a pair of bit lines provided in a static random access memory. That is, a sense amplifier SA and a switching N-channel MOS transistor (TR) N3 are connected in series between the power supply node of a high-potential supply voltage VDD and that of a low-potential supply voltage VSS. After data is outputted from the sense amplifier SA in the read mode, this output is used to suppress the through current of the sense amplifier SA. Thus, the power consumption in the read mode is reduced.
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