Integrated circuit of the logic circuit type comprising an electrically programmable non-volatile memory
US4864541A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit of the logic circuit type comprises an electrically programmable non-volatile memory formed by a matrix of memory cells of the floating-gate transistor type, with read and write circuits handling the interconnection of these circuits with the memory, the integrated circuit receiving a general power voltage V.sub.CC and a programming voltage V.sub.pp which are different from one another. The circuit can also detect the main power voltage V.sub.CC, sending a signal to prohibit writing in the memory when it is observed that the power voltage V.sub.CC is at zero or in high impedance while thep rogramming voltage is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.