SRAM including reduced swing amplifiers

Details SRAM including reduced swing amplifiers SRAM including reduced swing amplifiers

2009-03-31

2009-08-18

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

C365S154000, C365S194000

Reexamination Certificate

active

07577051

ABSTRACT:
SRAM includes reduced swing amplifiers, such that a first reduced swing amplifier serves as a local sense amp for reading a memory cell through a short local bit line, a second reduced swing amplifier serves as a segment sense amp for reading the local sense amp, and a third reduced swing amplifier serves as a global sense amp for reading the segment sense amp through a global bit line. When reading data, a voltage difference in the local bit line is converted to a time difference by the sense amps for differentiating low data and high data, which realizes low power consumption with the reduced swing amplifiers. And, lightly local bit line is quickly discharged when reading, which realizes fast operation. Furthermore, the local bit line is discharged by the reduced memory cell, which reduces area. Additionally, alternative circuits and memory cell structures for implementing the SRAM are described.

REFERENCES:
patent: 5179033 (1993-01-01), Adan
patent: 5780910 (1998-07-01), Hashimoto et al.
patent: 6205049 (2001-03-01), Lien et al.
patent: 6442089 (2002-08-01), Fletcher et al.
patent: 6972450 (2005-12-01), Liaw
patent: 7158428 (2007-01-01), Fujimoto
patent: 2004/0130926 (2004-07-01), Nakase
patent: 2004/0164767 (2004-08-01), Afghahi et al.
A Low Power Embedded SRAM for Wireless Applications, IEEE Solid-States Circuits, vol. 42, No. 7, Jul. 2007.
A low power SRAM Using Hierarchical Bit Line and Local read amplifiers, Yang et al, IEEE Journal of Solis-State Circuits, vol. 40, No. 6, Jun. 2005.

Affiliated with

Also associated with

Rating

SRAM including reduced swing amplifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4120120