Shared sense amplifier semiconductor memory
US4982370A · kind A · utility
37Cited by
6References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | May 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4091
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a dynamic random access semiconductor memory device comprising a sense amplifier and two pairs of bit lines sharing the sense amplifiers, each of the bit lines having a plurality of memory cells connected thereto, when a memory cell connected to one of the bit-line pairs is selected, the memory cells connected to the other bit-line pair are not connected to the sense amplifier, and, during a refresh cycle for rewriting data into a selected memory cell connected to a bit line of one of the bit-line pairs, the bit lines of the other bit-line pair are disconnected from the sense amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.