5 Feb
2003
5 Feb
'03
3:44 a.m.
From: "Alex Welti"
<lxwelti(a)comcast.net>
I have been handed down a room full of electronics - my
brother-in-law's father passed away - and I am the nearest relative who
has a career in electronics, so... I am spending my evenings going
through and identifing parts, most of which I am familiar with and have
datasheets on. However, I can't find anything on these i C8702A. A
web search brought me to your posting. I am hoping you have a datasheet
or know where I should go to find one.
Thanks,
Alex
Hi Alex
8702A is mostly the same as a 1702A and can be programmed
with any programmer that supports 1702A. The only difference
is that I know of was that the threshold for data was
a slightly different voltage. The 8702A was designed to
tie directly to a 8080 or 8085 without additional buffering.
Otherwise, the 1702A spec will work. If y9ou want the
exact levels, I can look it up.
Most current programmers do not support the 1702A's. You'll
need to find an old programmer someplace.
Dwight