Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default 27c400 EPROM

I need to use EPROM chip 27c400. It is very old, the stroe has only
27c4001. Can I use any other (E)EPROM chip instead?
Please help.
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Default 27c400 EPROM

Can someone tell me is 27c400
512x8 or 256x16 or both?
various websites say different things.
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