Control circuit for controlling an operation mode in a pseudo-st

Static information storage and retrieval – Addressing – Sync/clocking

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307465, 36523008, G11C 700

Patent

active

053011643

ABSTRACT:
A control circuit for controlling an operation mode in a pseudo-static RAM. A chip enable control circuit generates a first group of control signals in synchronism with a change in level of a chip enable signal. A second control circuit receives a chip select signal and the first group of control signals, latches a chip select signal on the basis of a signal of the first group of control signals, and generates a second control signal in accordance with the latched signal. A third control circuit controls a write enable signal with an inverted replica of the second control signal and an inverted replica of a predetermined one of the first control signals in the first group of control signals.

REFERENCES:
patent: 4827453 (1989-05-01), Sawada et al.
patent: 4841488 (1989-06-01), Sanada
patent: 4879683 (1989-11-01), Garcia
patent: 4970687 (1990-11-01), Usami et al.
patent: 4984216 (1991-01-01), Toda et al.

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