Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-09-18
2007-09-18
Le, Don (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S027000
Reexamination Certificate
active
11601263
ABSTRACT:
An output buffer for a semiconductor memory device and other semiconductor devices includes a feedback circuit to dynamically control the output impedance of the output buffer in response to a variety of load conditions, thus reducing output ringing. The output buffer may also include circuitry to support selectively converting the device for operation at a variety of supply voltage ranges without the need for additional mask or process steps.
REFERENCES:
patent: 4829199 (1989-05-01), Prater
patent: 5122690 (1992-06-01), Bianchi
patent: 5559447 (1996-09-01), Rees
patent: 5804987 (1998-09-01), Ogawa
patent: 5894238 (1999-04-01), Chien
patent: 6060921 (2000-05-01), Daniell
patent: 6177819 (2001-01-01), Nguyen
patent: 6184730 (2001-02-01), Kwong et al.
patent: 6236237 (2001-05-01), Wong et al.
patent: 6288563 (2001-09-01), Muljono et al.
patent: 6608505 (2003-08-01), Tsuji
Gallo Girolamo
Marotta Giulio
Le Don
Leffert Jay & Polglaze P.A.
LandOfFree
Variable impedance output buffer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable impedance output buffer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable impedance output buffer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3774188