TTL computing

From: Ben Franchuk <>
Date: Sat Apr 13 22:40:16 2002

Tony Duell wrote:

> Everyone knows you can get 'universal' device programmers that program
> PROMs, PALs, GALs, EPROMs, microcontrollers, and so on. The original
> question was clearly asking whether early PALs used a similar programming
> algorithm to the bipolar PROMs of the same time period. I don't think
> they ever did.

But most companies think $500 is low cost for a programer.

> But just as some enthusiasts like making and operating sailing ships, so
> some enthusiasts like wiring up TTL.

I like designing computers. I don't like wireing TTL. $125 US is the
lowest cost CPLD developent kit I have seen. A $15 chip replaces 15 TTL
at $.50 each -- $7.50 .I guess the savings must be in sockets and PCB
board size.
> -tony

Ben Franchuk - Dawn * 12/24 bit cpu *
Received on Sat Apr 13 2002 - 22:40:16 BST

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