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@allObjects
I got some new old stock (NOS) ICs, and before I used them and get puzzled why my circuitry does not behave as expected, I wanted to test them. It's a functional test, no timing test. Test is repeated as many times as specified. If at the end only the green LED (LED2) is on, then all tests were successful. If red LED (LED1) is on, then at least one test failed. If only the red LED is on, then all tests failed.
The example here is the Motorola CMOS MC14512B - 8 Channel Data Selector.
For details about the IC and the wiring see attached pictures. Codes and console output in second post.
Edit 2023-03-28: This MC14512 got a versatile buddy in crime: Using Pico to test new old stock (NOS) IC - MC14599 - 8 Bit Addressable Latch
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