Method and apparatus with dual circuitry for shifting the level

Details Method and apparatus with dual circuitry for shifting the level Method and apparatus with dual circuitry for shifting the level

1996-09-09

1998-04-14

Hudspeth, David R.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 17, 326 68, 326 81, H03K 190185

Patent

active

057397007

ABSTRACT:
A method and apparatus is disclosed for outputting a signal responsive to, and shifted in signal level relative to, an input signal level. A driver includes first circuitry outputting a first signal responsive to an input signal, and second circuitry outputting a second signal responsive to the input signal. The first circuitry includes circuitry for substantially shifting the first signal level relative to the input signal and responds more slowly than the second circuitry. The driver output is responsive to both the first and second signals so that the second circuitry improves driver response.

REFERENCES:
patent: 4980583 (1990-12-01), Dietz
patent: 5068551 (1991-11-01), Bosnyak
patent: 5146118 (1992-09-01), Nakamura et al.
patent: 5204557 (1993-04-01), Nguyen
patent: 5241225 (1993-08-01), Okajima et al.
patent: 5406140 (1995-04-01), Wert et al.
patent: 5526314 (1996-06-01), Kumar
patent: 5559465 (1996-09-01), Shah

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