Monolithic integrated logic and interface circuit - performs several logic operations and is also timing circuit and memory

The monolithic integrated logic and interface circuit has a wide range of applications and can accept high input signal voltages. It consists of several independent operation circuits. One operation circuit performs the logic operations AND, NAND and NOR. The circuit consists of the series combination of an input protection circuit, input current sinks, input logic which threshold, signal delay circuit with threshold output stage and output protection circuit. By connecting a capacitor the circuit can be made into a timing circuit or a memory. An internal diode acts as voltage limited at the output.