Programmable logic arrays

Static information storage and retrieval – Systems using particular element – Ferroelectric

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Details

36518905, 36518514, 365104, G11C 1122, G11C 1604

Patent

active

059368799

ABSTRACT:
A programming or function-setting cell for a field programmable gate array utilizes ferroelectric capacitors connected to the nodes of a latch circuit to retain charge representing the state of the cell so that, following a power loss or a specific event upset, the programming information held by the latch circuit may be reinstated. The latch circuit comprises a pair of inverters having their inputs and outputs cross-coupled by way of respective switching transistors, and the capacitors are connected between the nodes and a common plate conductor normally held at a potential intermediate the supply potentials for the inverters.

REFERENCES:
patent: 4918654 (1990-04-01), Eaton, Jr. et al.
patent: 5198706 (1993-03-01), Papaliolios
patent: 5592410 (1997-01-01), Verhaeghe et al.

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