Invention Grant
- Patent Title: SRAM timing cell apparatus and methods
- Patent Title (中): SRAM定时单元装置和方法
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Application No.: US13017793Application Date: 2011-01-31
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Publication No.: US08477527B2Publication Date: 2013-07-02
- Inventor: Li-Wen Wang , Shao-Yu Chou , Jihi-Yu Lin , Wei Min Chan , Yen-Huei Chen , Ping Wang
- Applicant: Li-Wen Wang , Shao-Yu Chou , Jihi-Yu Lin , Wei Min Chan , Yen-Huei Chen , Ping Wang
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater & Matsil, L.L.P.
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
Apparatus and methods for providing SRAM timing tracking cell circuits are disclosed. In an embodiment, an apparatus comprises an SRAM array comprising static random access memory cells arranged in rows and columns; a plurality of word lines each coupled to memory cells along one of the rows; a clock generation circuit for outputting clock signals; a word line generation circuit for generating a pulse on the plurality of word lines responsive to one of the clock signals and for ending the pulse responsive to one of the clock signals; and a tracking cell for receiving a clock signal and for outputting a word line pulse end signal to the clock generation circuit, following an SRAM tracking time; wherein the tracking cell further comprises SRAM tracking circuits positioned in the SRAM array and coupled in series to provide a signal indicating the SRAM tracking time. Methods for SRAM timing are disclosed.
Public/Granted literature
- US20120195106A1 SRAM Timing Cell Apparatus and Methods Public/Granted day:2012-08-02
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