Programmable circuit including a latch to store a fuse's state
US4532607A · kind A · utility
38Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1982 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Jul 16, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/789
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A programmable circuit has a fuse element grounded at one end and melted or not melted according to the data to be programmed and a select circuit for selectively producing either of two signals according to "melted" or "not melted" states of the fuse element. The other end of the fuse element is connected through a switching element to the power source terminal, and through a latch circuit to the select circuit. By turning on the switching element at least one time, a level corresponding to a melted state of the fuse element is latched in the latch circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.