Programmable logic circuit

Details Programmable logic circuit Programmable logic circuit

1993-09-29

1995-08-15

Hudspeth, David R.

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

326 41, H03K 19177

Patent

active

054422469

ABSTRACT:
A programmable logic circuit is provided with a plurality of logic cells including specific logic cells, at least two sub blocks, included in the specific logic cell, respectively having two or more inputs and one or more outputs and having only a predetermined combinational logic function by itself, and a switching circuit, included in the specific logic cell, and capable of independently connecting a path between the input and output of each sub block. An arbitrary combinational logic function and an arbitrary sequential logic function are realized by programming ON/OFF states of the switching circuit.

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patent: 5126599 (1992-06-01), Gobbi et al.
patent: 5140193 (1992-08-01), Freeman et al.
patent: 5240556 (1993-04-01), Shankar
El-Ayat et al., "A CMOS Electrically Configurable Gate Array," IEEE Journal of Solid-State Circuits, vol. 24, No. 3, Jun. 1989, pp. 752-762.

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