发明申请
US20080212396A1 Delay Mechanism for Unbalanced Read/Write Paths in Domino SRAM Arrays
审中-公开
Domino SRAM数组中不平衡读/写路径的延迟机制
- 专利标题: Delay Mechanism for Unbalanced Read/Write Paths in Domino SRAM Arrays
- 专利标题(中): Domino SRAM数组中不平衡读/写路径的延迟机制
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申请号: US12098715申请日: 2008-04-07
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公开(公告)号: US20080212396A1公开(公告)日: 2008-09-04
- 发明人: Chad Allen Adams , Anthony Gus Aipperspach , Derick Gardner Behrends , George Francis Paulik
- 申请人: Chad Allen Adams , Anthony Gus Aipperspach , Derick Gardner Behrends , George Francis Paulik
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G11C8/10
- IPC分类号: G11C8/10
摘要:
A memory system, e.g., a domino static random access memory (SRAM), includes a plurality of memory cells and a wordline decoder coupled to the memory cells through wordlines. The wordline decoder provides a wordline signal to one or more memory cells over the wordlines to allow access to the memory cell(s) for a read operation or a write operation. Read_w1 and write_w1 signals are generated by the wordline decoder based on whether a read or a write operation is to be performed in the next cycle. The wordline decoder includes a buffer having an input for receiving the write_w1 signal and an output for outputting a delayed version of the write_w1 signal. The wordline signal is activated by the wordline decoder based on the read_w1 signal and the delayed write_w1 signal. This overcomes the “early read” problem in which write performance is degraded due to a fast read path.
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