Constant pulse width generator

Details Constant pulse width generator Constant pulse width generator

1986-07-11

1988-08-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307273, H03K 3017, H03K 3284

Patent

active

047679476

ABSTRACT:
Constant pulse width generator having applicability to a static random access memory (SRAM) where a constant width output pulse is desired, regardless of the address line activity, until reset, for powering up peripheral circuits of the static random access memory when an input address changes. An exclusive-NOR circuit has address inputs including the address line and the address line delayed. The constant pulse width generator comprises a monostable delayed feedback loop which is provided on the output of the exclusive-NOR circuit, with the output of the loop changing only upon receipt of a change of state from the exclusive NOR circuit, otherwise remaining stable until the delay resets the output. The output of the constant pulse width generator is a pulse as wide as the delay introduced in the address input signal.

REFERENCES:
patent: 4464587 (1984-08-01), Suzuki et al.
patent: 4553045 (1985-11-01), Murotani

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