Invention Grant
- Patent Title: Apparatus for implementing domino SRAM leakage current reduction
- Patent Title (中): 实现多米诺SRAM漏电流减少的装置
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Application No.: US12143864Application Date: 2008-06-23
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Publication No.: US07715221B2Publication Date: 2010-05-11
- Inventor: Todd Alan Christensen , Elizabeth Lair Gerhard , Omer Heymann , Amira Rozenfeld
- Applicant: Todd Alan Christensen , Elizabeth Lair Gerhard , Omer Heymann , Amira Rozenfeld
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Joan Pennington
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A method and apparatus implementing domino static random access memory (SRAM) leakage current reduction include a local evaluation circuit coupled to true and complement bit lines of a pair of local SRAM cell groups, receives precharge signals and provides an output connected to a global dot line. A sleep input is applied to SRAM sleep logic and a write driver including sleep control. Data true and data complement outputs of the write driver are forced to a respective selected level to discharge the bit lines and global dot lines when the sleep input transitions high. Discharging the bit lines and global dot lines is implemented through gating in the write driver without requiring any additional devices in the local evaluation circuit.
Public/Granted literature
- US20080273402A1 APPARATUS FOR IMPLEMENTING DOMINO SRAM LEAKAGE CURRENT REDUCTION Public/Granted day:2008-11-06
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