Logic gate

An integrated circuit or other device whose inputs and outputs represent Boolean or binary values as voltages (TTL uses 0V for False or 0, +5V for True or 1).

Different gates implement different Boolean functions: AND, OR, NAND, NOR (these may take two or more inputs) NOT (one input), XOR (two inputs).

NOT, NAND and NOR are often constructed from single transistors and the other gates made from combinations of these basic ones.

These functions are all combinatorial logic functions, i.e. their outputs depend only on their inputs and there is no internal state.

Gates with state, such as latches and flip-flops, are constructed by feeding some of their outputs back to their inputs.

< Previous Terms	Terms Containing logic gate	Next Terms >
Logical Unit Number logic bomb Logic Design Language logic emulator Logic for Computable Functions	asynchronous logic Emitter Coupled Logic integrated circuit Programmable Array Logic race condition	logic programming Logic Replacement Technology logic variable LOGIN login