Differential input buffers with elevated power supplies

Details Differential input buffers with elevated power supplies Differential input buffers with elevated power supplies

2005-10-18

2005-10-18

Chang, Daniel D. (Department: 2819)

Electronic digital logic circuitry

Interface

Supply voltage level shifting

C326S081000, C327S333000

Reexamination Certificate

active

06956401

ABSTRACT:
Input buffer circuitry for handling high-speed differential input signals on an integrated circuit is provided. The input buffer circuitry may use two parallel differential input buffers with overlapping input-voltage ranges. Logic on the integrated circuit may be powered at a core-logic power supply voltage. Input-output circuitry on the integrated circuit may be powered at an input-output voltage level. To improve the performance of the input buffers in the overlap range, at least one the input buffers can be powered using a total power supply voltage drop that exceeds the core-logic power supply level. One of the input buffers may be configured to handle lower-voltage input signals. This input buffer may be powered using the input-output power supply level.

REFERENCES:
patent: 6218858 (2001-04-01), Menon et al.
patent: 6236231 (2001-05-01), Nguyen et al.
patent: 6252419 (2001-06-01), Sung et al.
patent: 6292116 (2001-09-01), Wang et al.
patent: 6335636 (2002-01-01), Yeung et al.
patent: 6346827 (2002-02-01), Yeung et al.
patent: 6373278 (2002-04-01), Sung et al.
patent: 6377069 (2002-04-01), Veenstra et al.
patent: 6400598 (2002-06-01), Nguyen et al.
patent: 6433579 (2002-08-01), Wang et al.
patent: 6472903 (2002-10-01), Veenstra et al.
patent: 6483886 (2002-11-01), Sung et al.
patent: 6515508 (2003-02-01), Chang et al.
patent: 6535031 (2003-03-01), Nguyen et al.
patent: 6825692 (2004-11-01), Chung et al.
patent: 2004/0061525 (2004-04-01), Tamaki

Affiliated with

Also associated with

Rating

Differential input buffers with elevated power supplies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential input buffers with elevated power supplies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential input buffers with elevated power supplies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3448486