Next EPROM Question - Sizes

Roy J. Tellason rtellason at
Mon Sep 17 18:45:55 CDT 2007

On Monday 17 September 2007 18:41, Tony Duell wrote:
> > So the question of the minute is this, is it possible to substitute a
> > 27C256 for a smaller 27C128?

> But please don't just program the same image into both halves of the
> 27156 and leave A14 floating, assuming it'll always apprar as a 0 or a 1
> to the chip, and since the 2 halves contain the same data, it doesn't
> matter which it appears as. You _will_ have hard-to-find glitches if you
> do somehting like that.

I would've thought so too...

Particularly with CMOS parts.

Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin

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