Redundancy roll call technique
US4567580A · kind A · utility
8Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1983 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Jun 29, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/835
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disabling circuit 71 responsive to a control signal 81 generated by applying to an IC pin 86 a signal outside the range of normal operating voltages of the device 16. The disabling circuit 71 grounds the output of are dundant address decoder such as 31 to disable a spare element 37 of the device 16, allowing identification of repaired elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.