On Sun, 2009-01-04 at 18:58 -0500, Curtis H. Wilbar Jr. wrote:
Trying to ID some chips I pulled from various pieces
of equipment.
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 ?
I'm pretty sure the 80C31 is ROMless. Was there a ROM on the board too?
I have 3 chips now in the trash pile... I believe they
are OTP EPROMs
(and since used, are no good). MX 27C1000PC-70, ATMEL
AT27LV256A, and AtMel AT27C010-70JC.
They are AFAIK OTP parts, yes.
Lastly I have what I think is EEPROM. SST
PH29EE010-150-4CF.
I believe this to be a 1Mbit EEPROM.
Sounds about right
Searching google for chip part numbers is paramount to
useless
due to all the chip vendors advertising.... there has to be a better
way....
Awful, isn't it?
So, beyond looking for better ways to search for chip
data/datasheets,
can anyone confirm the identification of the above chips ?
Is an 8031 cpu 'fun' to play with ? :-)
Alesis certainly seemed to think so.
Gordon