| T O P I C R E V I E W |
| bitboy |
Posted - 11/10/2007 : 05:33:27
Does anyone know where or how to get datasheet or cross reference for the NEC D23256AC EPROM ?
I suspect it is either:
1. speacial private labled chip to intimidate the average user from replacing it themselves (though it may have a published equivalent) Eg. NEC UPD27256
2. or maybe a custom chip created for the chip customer (???)
anyone have knowledge of these practices or can comment on the plausibility of my theories ?
if there is an equivalent chip, what method of investigation on the chip would i use to determine this ? is that possible ?
The EPROM is used by an Philips 8051 *romless* micro if that helps
Eg. how and what the chip lines are conected to other ICs
IMAGE below ..
thanks for helpful ideas and replies,
bitboy
Image Insert:
ram/rom ICs |
| 1 L A T E S T R E P L I E S (Newest First) |
| bitboy |
Posted - 11/11/2007 : 22:07:57
quote:
Originally posted by EZoSat
you can replace it with any 27C256 eprom.
many many thanks EZoSat, for the very helpful reply.
bitboy |
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