Re: fastest GS accelerator?

[derek@slab.slip.uiuc.edu (Derek Taubert)]

> Getting the Zip GSX to run beyond 12 MHz is just a matter of replacing the
> 74F00 logic chip with a 74HC00 (highest priority), adding a voltage regular
> and two resistors to get >5 volts and having a good combination of static
> rams in tag and data.  I'm currently running my Zip GSX 64k at 15.5 MHz
> without any kind of problem.  I use and consider the following programs as
> a good test of reliability:  NoiseTracker (the most picky), ProTERM
> v3.0/3.1, Task Force, AWGS, Finder and Platinum Paint.  Your accelerator is
> not reliable unless all these programs run without even a glitch.

Pardon me for not believing you, but the 74F00 has propagation and edge rise
times that are at least twice as fast as the 74HC00 part (HC - High-speed
CMOS).  CMOS is fairly slow, HC means that you're running a little bit faster
than TTL LS parts.  You would be better off with the F chip, unless the reason
has to do with something other than speed.  Care to explain it?

Derek