Dummy read to prevent crowbar current during read-write collisions in memory arrays with crosscoupled keepers
US9129706B2 · kind B2 · utility
3Cited by
2References
17Claims
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Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Jun 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for detecting and suppressing crowbar currents in memory arrays. A dummy read is implemented to prevent crowbar currents in the case of simultaneous read-write collisions in a static random access memory (SRAM) array having cross-coupled bitline keepers. When a simultaneous read and write operation to a first entry of the memory array is detected, the read operation to the first entry is suppressed and a dummy read operation to a second entry of the memory array is performed. The write operation to the first entry is allowed to proceed undisturbed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.