Mystery 8085-related IC identification needed please

Vincent Slyngstad v.slyngstad at
Fri Dec 16 11:57:31 CST 2016

From: Adrian Graham: Friday, December 16, 2016 5:43 AM
> They aren't 'standard' 14-pin DIPs in that they don't follow the
> GND-on-pin-7-Vcc-on-pin-14 layout. Pins 6 and 7 on both are wired together
> (not to GND) and form the RESET signal for the 8085 via the 7414 at 10A,
> source for this signal is unknown currently. Pin 5 on both appears to be Vcc
> and pin 10 is GND or at least are pulled high and low respectively.

If you had Vcc on 10 and GND on 5, I'd suggest UA733.  There aren't a 
lot of 14 pin chips with the power pins on 5 and 10.  (More with 4 and 11.)


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