Invention Grant
- Patent Title: Sense amplifier used in the write operations of SRAM
- Patent Title (中): 读写放大器用于SRAM的写操作
-
Application No.: US12347140Application Date: 2008-12-31
-
Publication No.: US08233330B2Publication Date: 2012-07-31
- Inventor: Jui-Jen Wu , Yi-Tzu Chen
- Applicant: Jui-Jen Wu , Yi-Tzu Chen
- 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: G11C7/00
- IPC: G11C7/00

Abstract:
A static random access memory (SRAM) circuit includes a pair of complementary global bit-lines, and a pair of complementary local bit-lines. A global read/write circuit is coupled to, and configured to write a small-swing signal to, the pair of global bit-lines in a write operation. The SRAM circuit further includes a first multiplexer and a second multiplexer, each having a first input and a second input. The first input of the first multiplexer and the first input of the second multiplexer are coupled to different one of the pair of global bit-lines. A sense amplifier includes a first input coupled to an output of the first multiplexer, and a second input coupled to an output of the second multiplexer. The sense amplifier is configured to amplify the small-swing signal to a full-swing signal, and outputs the full-swing signal to the pair of local bit-lines in the write operation.
Public/Granted literature
- US20100165749A1 Sense Amplifier Used in the Write Operations of SRAM Public/Granted day:2010-07-01
Information query