RE: Slightly OT: Up/Down-Counter, easy interfaceable to 8-bit MPU

From: Davison, Lee (
Date: 2004-05-03 01:07:27

> I've already found the 74191 type of ICs. Unfortunately,
> I need 4 of them to get an 16 bit counter, and I also
> need a bus driver to interface them with the MPU:

74LS569A 4 bit binary up/down counter with tri state outputs.

> this is way too much for our purpose because we need a
> very small interface PCB only.

Use the surface mount or PLCC packaged chips

Your only other option will be some form of programmable gate


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