Latch circuit with reduced metastability

Details Latch circuit with reduced metastability Latch circuit with reduced metastability

1990-09-21

1992-01-14

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, H03K 1900, H03K 1716

Patent

active

050813773

ABSTRACT:
A latch circuit employs a feedback arrangement comprising a transmisson gate circuit that conducts only when the output node is in a mid-voltage state. At the onset of a metastable state, the feedback arrangement forces a receiving node into its previous stable state, thereby forcing the output node into a stable state. This eliminates or reduces the possibility that the latch could remain hung for an indefinite period in a metastable state.

REFERENCES:
patent: 4398105 (1983-08-01), Keller
patent: 4498176 (1985-02-01), Wagner
patent: 4591737 (1986-05-01), Campbell
patent: 4719366 (1988-01-01), Tan
patent: 4777388 (1988-10-01), Widener
patent: 4786829 (1988-11-01), Letcher
patent: 4808840 (1989-02-01), Chung et al.
patent: 4920282 (1990-04-01), Muraoka
patent: 4963772 (1990-10-01), Duke

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