> On Jul 17, 2019, at 1:20 AM, Paul Birkel <pbir...@gmail.com> wrote:
> From some notes (origin misplaced!) you'll need a typical access time of
> 40ns from address, or 20ns from /CS:

Thank you! That rules out using a 70ns EEPROM, then.

I think I have a line on most of the bootstrap PROMs that I will need, but I'm 
still interested in the general problem of replacing defective bipolar PROMs 
and making new ones, when I can't just order blanks from Digi-Key.


-- 
Mark J. Blair, NF6X <n...@nf6x.net>
http://www.nf6x.net/

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