Semiconductor device

Details Semiconductor device Semiconductor device

2010-02-23

2011-10-04

Nguyen, Tan T. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

C365S189050, C365S196000, C365S227000

Reexamination Certificate

active

08031546

ABSTRACT:
In a semiconductor device having a data input buffer capable of inputting write data to each of memory units, the data input buffer is changed from an inactive state to an active state after the reception of instruction for a write operation effected on the memory unit. The data input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by the turning on of a power switch to thereby cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instruction for the memory unit is provided, the data input buffer is rendered inactive in advance, before the instruction for the write operation is provided, whereby wasteful power consumption is reduced. In another aspect, power consumption is reduced by changing from the active to the inactive state in a time period from a write command issuing to a next command issuing.

REFERENCES:
patent: 4096402 (1978-06-01), Schroeder et al.
patent: 4672583 (1987-06-01), Nakaizumi
patent: 4794564 (1988-12-01), Watanabe
patent: 4858188 (1989-08-01), Kobayashi
patent: 4992983 (1991-02-01), Suzuki
patent: 5202853 (1993-04-01), Choi
patent: 5313120 (1994-05-01), Pelley, III
patent: 5315560 (1994-05-01), Nishimoto et al.
patent: 5359567 (1994-10-01), Kondou
patent: 5379257 (1995-01-01), Matsumura et al.
patent: 5400292 (1995-03-01), Fukiage et al.
patent: 5426381 (1995-06-01), Flannagan et al.
patent: 5440511 (1995-08-01), Yamamoto et al.
patent: 5500820 (1996-03-01), Nakaoka
patent: 5555522 (1996-09-01), Anami et al.
patent: 5563832 (1996-10-01), Kagami
patent: 5661691 (1997-08-01), Lin
patent: 5691955 (1997-11-01), Yamauchi
patent: 5703829 (1997-12-01), Suzuki et al.
patent: 5801554 (1998-09-01), Momma et al.
patent: 5825693 (1998-10-01), Lee et al.
patent: 5880998 (1999-03-01), Tanimura et al.
patent: 5903508 (1999-05-01), Choi
patent: 5917759 (1999-06-01), Akashi
patent: 5940330 (1999-08-01), Kim
patent: 5955896 (1999-09-01), Horiguchi et al.
patent: 6011751 (2000-01-01), Hirabayashi
patent: 6016283 (2000-01-01), Jeong
patent: 6031786 (2000-02-01), Jang et al.
patent: 6038189 (2000-03-01), Morishita
patent: 6058063 (2000-05-01), Jang
patent: 6064625 (2000-05-01), Tomita
patent: 6115322 (2000-09-01), Kanda et al.
patent: 6118729 (2000-09-01), Hirabayashi et al.
patent: 6160743 (2000-12-01), Parris
patent: 6192003 (2001-02-01), Ohta et al.
patent: 6198689 (2001-03-01), Yamazaki
patent: 6208582 (2001-03-01), Kanda et al.
patent: 6240048 (2001-05-01), Matsubara
patent: 6242940 (2001-06-01), Na
patent: 6292428 (2001-09-01), Tomita et al.
patent: 6320819 (2001-11-01), Tomita et al.
patent: 6337821 (2002-01-01), Watanabe et al.
patent: 6337822 (2002-01-01), Kwak et al.
patent: 6339552 (2002-01-01), Taruishi et al.
patent: 6424590 (2002-07-01), Taruishi et al.
patent: 6466492 (2002-10-01), Ikeda
patent: 6819602 (2004-11-01), Seo et al.
patent: 6954384 (2005-10-01), Taruishi et al.
patent: 7020031 (2006-03-01), Shin et al.
patent: 7453738 (2008-11-01), Taruishi et al.
patent: 9-27192 (1997-01-01), None
patent: 10-326488 (1998-12-01), None
patent: 11-16346 (1999-01-01), None
patent: 11-191292 (1999-07-01), None
patent: 11-195296 (1999-07-01), None
patent: 11-288590 (1999-10-01), None

Affiliated with

Also associated with

Rating

Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4259901