5 Jan
2009
5 Jan
'09
5:10 p.m.
I have a cpu? I pulled out of a modem ... Signetics
SC80C31BCPN40. This would appear to be an Intel 8031 based
cpu. But does it have an internal ROM/etc that would preclude
its reuse ?
Yep...but even 8051 (which has an internal ROM) can be used as a romless
8031. There is a pin of internal memory selection you have to tie down, pin
31 if I'm not mistaken.
Searching google for chip part numbers is paramount to
useless
due to all the chip vendors advertising.... there has to be a better
way....
www.datasheetarchive.com
Is an 8031 cpu 'fun' to play with ? :-)
Any cpu is :) But it depends on what you find to be "fun" :oD