chip identification

[Chuck Guzis]

On 4 Jan 2009 at 18:58, Curtis H. Wilbar Jr. wrote:

> 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 ?

8031/80C31 is the ROM-less version of the 8051.  So you're in luck.
 
> 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.

I believe that you're right, if they have no windows on them.
 
> Lastly I have what I think is EEPROM.  SST PH29EE010-150-4CF.
> I believe this to be a 1Mbit EEPROM. 

Yes, search for "29EE010" on DatasheetCatalog.com and you'll turn up 
the SST part.

As far as excluding the chip-peddling sites, I spike my google search 
with terms such as -buy -RFQ -qty -quantity -stock... 

Cheers,
Chuck