Data output circuit for semiconductor memory apparatus

Details Data output circuit for semiconductor memory apparatus Data output circuit for semiconductor memory apparatus

2008-07-08

2010-10-05

Mai, Son L (Department: 2827)

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

C365S189070, C365S189110

Reexamination Certificate

active

07808841

ABSTRACT:
A data output circuit for a semiconductor memory apparatus includes a driver control signal generating unit that has a plurality of control signal generating units, each of which generates a driver unit control signal in response to a test signal during a test, and generates the driver unit control signal according to whether or not a fuse is cut after the test is completed, a first driver that has a plurality of driver units, each of which is activated in response to the driver unit control signal to drive a first data signal as an input signal and to output the driven first data signal to an output node, a signal combining unit that generates a first driver control signal in response to the driver unit control signal and an enable signal, and a second driver that has a plurality of driver units, each of which is activated in response to the first driver control signal to drive a second data signal as an input signal and to output the driven second data signal to the output node, and the number of driver units being two or more times as much as the number of driver units in the first driver. A voltage level on the output node is the voltage level of an output signal.

REFERENCES:
patent: 5945851 (1999-08-01), Tu et al.
patent: 6140841 (2000-10-01), Suh
patent: 6211698 (2001-04-01), Suh
patent: 6710617 (2004-03-01), Humphrey
patent: 6772351 (2004-08-01), Werner et al.
patent: 7072415 (2006-07-01), Zerbe et al.
patent: 7124221 (2006-10-01), Zerbe et al.
patent: 7221182 (2007-05-01), Choi
patent: 7251169 (2007-07-01), Takeuchi
patent: 7269212 (2007-09-01), Chau et al.
patent: 7308058 (2007-12-01), Zerbe et al.
patent: 7339429 (2008-03-01), Maki
patent: 7365570 (2008-04-01), King
patent: 7577050 (2009-08-01), Kim et al.
patent: 2002/0075968 (2002-06-01), Zerbe et al.
patent: 2009/0168549 (2009-07-01), Jeon
patent: 2009/0231930 (2009-09-01), Kang et al.
patent: 10-1998-0067319 (1998-10-01), None
patent: 1019990048862 (1999-07-01), None
patent: 1020070036473 (2007-04-01), None

Affiliated with

Also associated with

Rating

Data output circuit for semiconductor memory apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data output circuit for semiconductor memory apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data output circuit for semiconductor memory apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4168236