Mystery 8085-related IC identification needed please

Peter Coghlan cctalk at
Fri Dec 16 12:19:20 CST 2016

> 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.

Could they be 74(LS)90? Those have Vcc on pin 5 and GND on pin 10.

Peter Coghlan.

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