Apparatus and method for precharging bus conductors to minimize

Details Apparatus and method for precharging bus conductors to minimize Apparatus and method for precharging bus conductors to minimize

1995-11-27

1997-07-08

Hudspeth, David R.

Electronic digital logic circuitry

Clocking or synchronizing of logic stages or gates

326 21, 326 86, H03K 19003

Patent

active

056465564

ABSTRACT:
An apparatus is provided for precharging a conductor within a bus containing a plurality of conductors. The apparatus comprises a precharge driver which precharges alternating pairs of conductors to opposite rail voltages. By precharging pairs of conductors to alternating rails, the present apparatus can minimize the speed degradation problems associated with a transitioning target conductor within the bus. Precharging alternating pairs of conductors also minimizes crosstalk noise from transitioning neighbor conductors to a non-transitioning target conductor. The improved dynamic bus thereby demonstrates improvements in speed degradation and crosstalk noise as seen by a transitioning target conductor or non-transitioning target conductor, respectively.

REFERENCES:
patent: 4467439 (1984-08-01), Rhodes
patent: 4758990 (1988-07-01), Uchida
patent: 4888737 (1989-12-01), Sato
patent: 4990801 (1991-02-01), Caesar et al.
patent: 5295104 (1994-03-01), McClure
patent: 5301349 (1994-04-01), Nakata et al.

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