A Ram cell having means for controlling a bidirectional shift
US4864544A · kind A · utility
21Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Nov 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory cell is comprised of a cross-coupled master latch and a cross-coupled slave latch. The memory cell includes means for switching on and off power supplies connected to the master latch and the slave latch so as to control the direction of shift in a bidirectional shift. Data is shifted in a first direction when the power supply connected to the master latch is switched off, and data is shifted in a second direction when the power supply connected to the slave latch is switched off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.