Electronic digital logic circuitry – Interface – Current driving
Patent
1994-12-08
1996-03-05
Westin, Edward P.
Electronic digital logic circuitry
Interface
Current driving
326 39, 326 86, H03K 190175
Patent
active
054971080
ABSTRACT:
A programmable logic device includes a plurality of logic cells in which logic functions are performed, a plurality of input lines for supplying signals to be processed by the logic cells, a plurality of output lines for receiving signals that have been processed by the logic cells, and a plurality of repeater circuits combining bipolar and CMOS transistor technologies for transferring data from one point in the PLD to another point. Unidirectional repeater circuits transfer data from a first data bus in the PLD to a second data bus in the PLD. Bidirectional repeater circuits maintain signal integrity by transferring data along the length of a single PLD data bus. The bipolar technology in the repeater circuits provides superior speed in data transfer, while the CMOS technology limits power consumption of the repeater circuits.
REFERENCES:
patent: 3967059 (1976-06-01), Moore, III et al.
patent: 4713557 (1987-12-01), Carter
patent: 4761615 (1988-08-01), Maloberti
patent: 5202593 (1993-04-01), Huang
patent: 5218240 (1993-06-01), Camarota
patent: 5306967 (1994-04-01), Dow
patent: 5341040 (1994-08-01), Garverick
Menon Suresh M.
Whang Tsung C.
Wilson Stanley
Dynalogic Corporation
Sanders Andrew
Westin Edward P.
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