Cascade array cell partitioning for a sense amplifier of a progr

Details Cascade array cell partitioning for a sense amplifier of a progr Cascade array cell partitioning for a sense amplifier of a progr

1993-03-19

1995-11-21

Sikes, William L.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327208, 327170, 327443, 327475, G11C 800, G11C 1134, G11C 11409

Patent

active

054690889

ABSTRACT:
A sense amplifier for implementing a wide or multiple input NOR gate for receiving a product term of a group of array cells in a programmable logic device (PLD). Array cells signals which are all normally received by the sense amplifier in a single product term input are instead connected to the sense amplifier in smaller groups of sub-product terms. Each smaller group of sub-product terms is then connected through a transistor cascode amplifier in the sense amplifier to form the single product term enabling a reduction of capacitance and an increase of output speed of the sense amplifier.

REFERENCES:
patent: 4845681 (1989-07-01), Vu et al.
patent: 5027008 (1991-06-01), Runaldue
patent: 5189322 (1993-02-01), Chan et al.
patent: 5297093 (1994-03-01), Coffman
U.S. Patent Application Ser. No. 07/754,920, "Dual Port Memory, Such As Used In Color Lookup Tables For Video Systems", Filed Sep. 4, 1991.

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