发明授权
- 专利标题: Dual port memory device
- 专利标题(中): 双端口存储设备
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申请号: US12404892申请日: 2009-03-16
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公开(公告)号: US07940599B2公开(公告)日: 2011-05-10
- 发明人: Olga R. Lu , Lawrence F. Childs , Thomas W. Liston
- 申请人: Olga R. Lu , Lawrence F. Childs , Thomas W. Liston
- 申请人地址: US TX Austin
- 专利权人: Freescale Semiconductor, Inc.
- 当前专利权人: Freescale Semiconductor, Inc.
- 当前专利权人地址: US TX Austin
- 主分类号: G11C7/00
- IPC分类号: G11C7/00 ; G11C7/10 ; G11C8/00
摘要:
A multi-port memory device having a storage node, a precharge node, a first, second, third, and fourth transistor, and a control module. The first transistor includes a current electrode connected to the storage node, another current electrode connected to a first bit line, and a gate connected to a first wordline. The second transistor includes a current electrode connected to the storage node, another current electrode connected to a second bit line, and a gate connected to a second wordline. The third transistor includes a current electrode connected to the reference node, another current electrode connected to the first bit line, and a gate. The fourth transistor includes a current electrode connected to the precharge node, another current electrode connected to the second bit line, and a gate. The control module deactivates the fourth transistor in response to a dummy access of the first storage module at the second transistor.
公开/授权文献
- US20100232202A1 DUAL PORT MEMORY DEVICE 公开/授权日:2010-09-16
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