Here’s an IC logic project ... one AND gate chip, and one OR gate chip. He chose a SOIC crystal oscillator chip as the clock signal. We’re more partial to the idea of using mains voltage ...

Characterized by razor-thin margins, the commodity IC ... logic gates. Sometimes, microcontrollers are added. Digital circuits use digital, discrete signals that are generally based on a binary ...

The use of EEPROMs is common with PLA-replacements, as with, for example, the Commodore 64, where the official PLA IC tends to go bad over time. Due to the complexity of the logic in these PLA ICs ...