Safety device for the programming of an electrically programmable non-volatile memory
US4827451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a memory consisting of a matrix of memory cells, each of which is accessible by rows and columns and is connected to write and read circuits which are used, respectively, to programme them in two states, "1" or "0", depending on the input data, and to read the programmed state, the memory cells being of the type that require a programming current in order to be programmed in a first state or "1" and require no current to be programmed in a second state or "0", the safety device consists of a simulation circuit activated by data corresponding to a "0" programming operation and delivering a current identical to that of a memory cell in the "1" programming condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.