On 3/8/2013 1:02 PM, Jules Richardson wrote:
Does anyone happen to have the pinout handy for a Natsemi MM5736 IC
(mid-'70s)? In particular, I want to know which pin is GND.
I came home with a little Novus 650 calculator yesterday, but the
power switch (which switches the ground line) is dead - of course the
keypad's heat-staked so before I waste time having to do surgery in
order to clean switch contacts, I'd like to see if the calc looks
like it might be otherwise functional.
cheers
Jules
the 1977 NatSemi MOS/LSI Data book lists only the MM5734 and MM5737
with no reference to the MM5736. GND is shown as pin 6 on the 5737
s2
found it: GND for the MM5736 18pin DIP is Pin 18. (check out "build
this electronic stopwatch" at