DEC Purchase Specifications, particularly 23-000A9-01

Mark J. Blair nf6x at
Wed Jul 17 10:43:23 CDT 2019

> On Jul 17, 2019, at 1:20 AM, Paul Birkel <pbirkel at> 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 <nf6x at>

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