12 Jul
1999
12 Jul
'99
4:48 p.m.
At 11:24 PM 7/11/99 -0700, Doug wrote:
Hi everyone,
These are 22 pin chips, made in 1977, but I can't
seem to find any chip manufacturer named SEMI or
any reference to this 4200 number.
Can anyone identify these chip?
I don't know that part number (a 4k dynamic ram like Intel 2107??), but the
company was "EMM Semi", a part of
Electronic Memories & Magnetics. They were in Phoenix, AZ.
-Dave