Semiconductor memory device having self-refreshing function

Details Semiconductor memory device having self-refreshing function Semiconductor memory device having self-refreshing function

1996-02-27

1997-05-27

Nguyen, Tan T.

Static information storage and retrieval

Read/write circuit

Data refresh

365226, 36518909, 36518907, G11C 700

Patent

active

056338317

ABSTRACT:
A timing generating circuit generates a signal SRE defining a period in which a self-refreshing operation is carried out based on a signal extRAS and a signal extCAS. An internal voltage down-converting circuit controls the level of an internal power supply voltage intVcc to be generated in the period defined by the signal SRE lower in the self-refreshing operation than in a normal operation. As a result, a semiconductor memory device is obtained which reduces current consumption in the self-refreshing operation by simple control in an internal circuit.

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patent: 5488587 (1996-01-01), Fukumoto

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