TTL/CMOS input buffer operable with three volt and five volt pow

Details TTL/CMOS input buffer operable with three volt and five volt pow TTL/CMOS input buffer operable with three volt and five volt pow

1992-08-10

1994-04-19

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307451, 3072963, H03K 190185

Patent

active

053048725

ABSTRACT:
A dual mode input buffer having two modes of operation, a first mode of operation which provides a first CMOS level output from a TTL level input while operating at a first voltage level, and a second mode of operation which provides a second CMOS level output from a TTL level input while operating at a second voltage level. A first input provides TTl level inputs. An output provides a first CMOS level output and a second CMOS level output, one at at a time, depending on the mode of operation. A second input selects one of the two operation modes. Buffer means provides buffering of the signals provided on the first input. The buffer means has a level shifting transistor. Trip point level shifting means is provided for maintaining the trip point of the dual mode input buffer at approximately the same voltage level when the dual mode input buffer is operated at the second voltage level as when it operates at the first voltage level. A second input activates said trip point level shifting means.

REFERENCES:
patent: 4593212 (1986-06-01), Svager
patent: 4707623 (1987-11-01), Bismark
patent: 4791323 (1988-12-01), Austin
patent: 4820941 (1989-04-01), Dolby et al.
patent: 4890051 (1989-12-01), Kim et al.
patent: 4929853 (1990-05-01), Kim et al.
patent: 4999529 (1991-03-01), Morgan, Jr. et al.

Affiliated with

Also associated with

Rating

TTL/CMOS input buffer operable with three volt and five volt pow does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with TTL/CMOS input buffer operable with three volt and five volt pow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TTL/CMOS input buffer operable with three volt and five volt pow will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-22057