PLAs were the FPGAs of the day, with arrays of AND gates and OR gates that could be connected into complex logic circuits. [Johan]’s investigation started with liberating the 8721 die from its ...

Integrated circuits contain multiple gates of a type ... expressions but the amount of improvement is uncertain. If a complex logical decision is needed it might be useful to apply these techniques.

You can use it to design simple to complex ladder diagrams. Timers, counters, comparators, memory bits, etc., are also easily accessible. After designing a PLC ladder logic diagram, you can run ...

They are the basis of computers and modern telecommunications. The underlying circuits are a complex, networked system of ...