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I have to program an 82S23.

There is surprisingly little documentation on how to do this. There are datasheets that will tell you how to read it, but not burn.

I built one following these specifications, but after programming, the bit would stay low. In addition, application of the high programming voltages actually causes the PROM to heat up. I actually fried one by holding the program button down too long.

Any advice?

fuzzyhair2
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1 Answers1

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Does this help you? http://gamearchive.askey.org/General/Data_Sheets/generic1_prom/

I searched for Signetics Generic 1 fusing procedure.

Also, according to the datasheet on the page I linked, the programming supply current is up to 500mA (at Vccp of 8.75V), and the current into the data pin being programmed is up to 200mA (at Vopf of 18V). So I would expect the chip might get warm, as it is dissipating almost 8W (8.75V*.5A + 18V*.2A).

Zuofu
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