Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1993-03-18
1994-11-08
Hudspeth, David R.
Electronic digital logic circuitry
Multifunctional or programmable
Array
326 21, 326 83, 326 62, H03K 19177
Patent
active
053629990
ABSTRACT:
A hybrid EPLD (chip) architecture has multiple first blocks each including a first type programmable AND array and multiple first type macrocells which are complex in structure and highly configurable; and multiple blocks each including a second type programmable AND array having fewer input lines and product term output lines than does the first type AND array, and multiple second type macrocells which have fewer logic gates than do the first type macrocells. The EPLD has a programmable interconnect matrix for interconnecting all the blocks.
REFERENCES:
patent: 4870302 (1989-09-01), Freeman
patent: 5023484 (1991-06-01), Pathak et al.
patent: 5095523 (1992-03-01), Delaruelle et al.
patent: 5155389 (1992-10-01), Furtek
Hudspeth David R.
Klivans Norman R.
Xilinx , Inc.
Young Edel M.
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