Method and circuitry for preventing propagation of undesired ATD

Details Method and circuitry for preventing propagation of undesired ATD Method and circuitry for preventing propagation of undesired ATD

1995-03-09

1996-10-08

Nelms, David C.

Static information storage and retrieval

Addressing

Sync/clocking

365233, 36518533, 36518905, G11C 800

Patent

active

055638430

ABSTRACT:
An Address Transition Detection (ATD) circuit for use in memory devices. The ATD circuit includes a pulse generator for generating an ATD pulse. For asynchronous memory device, the pulse generator generates the ATD pulse in response to an address transition, wherein for synchronous devices, the pulse generator generates the ATD pulse in response to control signals that indicate a valid address. The ATD circuit also includes a control circuit and a mask circuit. The control circuit is operative to asserting a first control signal in response to receiving the pulse. The mask circuit is coupled between the output of the pulse generator and the control circuit for preventing propagation of the ATD pulse if the first control signal is active.

REFERENCES:
patent: 5222046 (1993-06-01), Kreifels et al.
patent: 5243575 (1993-09-01), Sambandan et al.
patent: 5265064 (1993-11-01), Davies et al.
patent: 5313435 (1994-05-01), Kim et al.
patent: 5414672 (1995-05-01), Ozeki et al.
patent: 5418479 (1995-05-01), Sambandan

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