Macrocell with product-term cascade and improved flip flop utili

Details Macrocell with product-term cascade and improved flip flop utili Macrocell with product-term cascade and improved flip flop utili

1994-09-06

1996-10-15

Westin, Edward P.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 39, 327407, H03K 19177

Patent

active

055657923

ABSTRACT:
A programmable logic device having macrocells enables gate cascades between macrocells to occur with a faster signal transit time, while preserving the flip flop function of the cascaded macrocells by reallocating a redirectable flip flop reset product term to the flip flop input. All gate product terms are retained during cascading. The macrocell logic is optimized for fast signal transit with selectable flip flop clocking. Multiplex clocking and programming are done with fewer transistors in the signal path, further reducing signal transit time.

REFERENCES:
patent: 4758746 (1988-07-01), Birkner et al.
patent: 4771285 (1988-09-01), Agrawal et al.
patent: 4912345 (1990-03-01), Steele et al.
patent: 4933577 (1990-06-01), Wong et al.
patent: 4963770 (1990-10-01), Keida
patent: 5027011 (1991-06-01), Steele
patent: 5027315 (1991-06-01), Agrawal et al.
patent: 5121006 (1992-06-01), Pedersen
patent: 5122685 (1992-06-01), Chan et al.
patent: 5136188 (1992-08-01), Ha et al.
patent: 5260611 (1993-11-01), Cliff et al.
Weste et al.; "Principles of CMOS VLSI Design, A Systems Perspective"; .COPYRGT.1985 by AT&T Bell Laboratories, Inc. and Kamran Eshraghian; pp. 182-183.
Advanced Micro Devices "MACH.TM. Family Data Book, High Density EE CMOS Programmable Logic, Q2 1991 Data Book", Copyright 1991 Advanced Micro Devices, Inc.

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