When i had put the near Obsolete digital circuits online in the late nineties. One person who works in a public institution in the usa, wanted a modification of one of my existing circuits. He had those parts the CD40 Series Logic Chips. He wanted to use only those that he had in his Stock.
Digital Circuits 2 from delabs
I made some modifications and sent it to him, that helped him with his task. These things can be done very easily using an embedded microcontroller. One could make a programmable Timer/Counter with a matching Configuring Software without coding, for such people. Easy and Affordable. You could also make a pure digital chip by using a CPLD or FPGA, if that is affordable.
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