Safety device for the programming of an electrically programmable non-volatile memory
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United States of America Patent
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May 2, 1989
Grant Date -
N/A
app pub date -
Sep 29, 1987
filing date -
Sep 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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