Self-timing clock generator for precharged synchronous SRAM

Details Self-timing clock generator for precharged synchronous SRAM Self-timing clock generator for precharged synchronous SRAM

1994-09-14

1995-07-11

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Precharge

36518905, 365233, G11C 700

Patent

active

054327474

ABSTRACT:
A self-timing clock generator for use with a precharged Static Random Access Memory (SRAM). The invention asynchronously switches the memory clock pulse to a precharge signal upon recognition of completion of a memory access cycle. Recognition of completion of the memory access cycle is performed in one of two ways. The first method monitors for the existence of a preprogrammed memory-completion bit which becomes active at the same time that read or write data becomes valid at the data outputs. The second method monitors for the existence of a memory-completion bit generated through the use of an odd parity generator. An alternate clocking method is provided to bypass the asynchronous self-timing clock generator, and to allow for synchronous clocking of the precharged SRAM. An external clocking method is also provided to directly clock the precharged SRAM. Finally, the self-timing clock generator and the precharged SRAM may be tested through the use of a test enable circuit, which intercepts the generated precharge and clock signals, and provides in place thereof a test precharge and clock signal.

REFERENCES:
patent: 4612631 (1986-09-01), Ochii
patent: 4638462 (1987-01-01), Rajeerakumar
patent: 4794570 (1988-12-01), Rose et al.
patent: 4856106 (1989-08-01), Teraoka
patent: 4914633 (1990-04-01), Rose et al.
patent: 4943960 (1990-07-01), Komatsu et al.
patent: 5029135 (1991-07-01), Okubo
patent: 5229970 (1993-07-01), Lee et al.
patent: 5262998 (1993-11-01), Mnich et al.
patent: 5315557 (1994-05-01), Kim et al.

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