Invention Grant
- Patent Title: Asymmetric four-transistor SRAM cell
- Patent Title (中): 非对称四晶体管SRAM单元
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Application No.: US11621679Application Date: 2007-01-10
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Publication No.: US07643329B2Publication Date: 2010-01-05
- Inventor: Manoj Sachdev , Mohammad Sharifkhani
- Applicant: Manoj Sachdev , Mohammad Sharifkhani
- Applicant Address: CA Waterloo, Ontario
- Assignee: CertiChip Inc.
- Current Assignee: CertiChip Inc.
- Current Assignee Address: CA Waterloo, Ontario
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
An asymmetric Static Random Access Memory (SRAM) cell is provided. The SRAM cell comprises first and second storage nodes, drive transistors and access transistors. The first and second storage nodes are configured to store complementary voltages. The drive transistors are configured to selectively couple each of the first and second storage nodes to corresponding high and low voltage power supplies, and maintain a first logic state through a feedback loop. The access transistors are configured to selectively couple each of the first and second storage nodes to corresponding first and second bit-lines and maintain a second logic state through relative transistor leakage currents. A method for reading from and writing to the SRAM cell are also provided.
Public/Granted literature
- US20070177419A1 ASYMMETRIC FOUR-TRANSISTOR SRAM CELL Public/Granted day:2007-08-02
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