Address transition detection circuit

Details Address transition detection circuit Address transition detection circuit

1996-10-21

1998-01-06

Nelms, David C.

Static information storage and retrieval

Addressing

Sync/clocking

36523008, 365194, 326 93, 327175, 327176, G11C 800

Patent

active

057062463

ABSTRACT:
An address transition detection circuit for driving an internal circuit of a memory device, includes an address input circuit for generating an input logic operation signal by a logic operation of a chip select signal and an address signal, a latch circuit for generating first and second latch signals, a feedback circuit for generating a feedback signal, first and second delay circuits for generating first and second delay signals by delaying the first and second latch signals for a prescribed delay time, and an address transition detection signal output circuit for receiving the first and second latch signals and the first and second delay signals, and generating an address transition detection signal having a pulse width longer than at least the twice the prescribed delay time of the first or second delay circuit when the address signal changes, thereby preventing malfunction of the memory device.

REFERENCES:
patent: 4343082 (1982-08-01), Han et al.
patent: 4592028 (1986-05-01), Konishi
patent: 5003513 (1991-03-01), Porter et al.
patent: 5198708 (1993-03-01), Gillingham
patent: 5438550 (1995-08-01), Kim
patent: 5519666 (1996-05-01), McAdams
patent: 5625604 (1997-04-01), Kim et al.

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