Invention Grant
- Patent Title: Dual port SRAM with dummy read recovery
- Patent Title (中): 具有虚拟读取恢复功能的双端口SRAM
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Application No.: US14043869Application Date: 2013-10-02
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Publication No.: US09129707B2Publication Date: 2015-09-08
- Inventor: Kao-Cheng Lin , Wei Min Chan , Yen-Huei Chen
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Duane Morris LLP
- Main IPC: G11C8/16
- IPC: G11C8/16 ; G11C11/419 ; G11C7/10 ; G11C11/412

Abstract:
An integrated includes a dual port memory cell such as a SRAM cell. A first port dummy read recovery block couples the first port complementary bit line to a high voltage supply node during a write logic low operation to the data node through the second port bit line, and couples the first port bit line to a high voltage supply node during a write logic low operation to the complementary data node through the second port complementary bit line. A second port dummy read recovery block couples the second port complementary bit line to a high voltage supply node during a write logic low operation to the data node through the first port bit line, and couples the second port bit line to a high voltage supply node during a write logic low operation to the complementary data node through the first port complementary bit line.
Public/Granted literature
- US20150092476A1 DUAL PORT SRAM WITH DUMMY READ RECOVERY Public/Granted day:2015-04-02
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