Logic gate: what it means.
Logic functions are commonly described with a truth table. The table identifies the output for each relevant input combination. AND, OR, inversion and related functions form building blocks for larger digital circuits. (Texas Instruments: configurable logic datasheet)
A truth table describes logical behavior, not all electrical requirements. Real devices also have supply, input, output and timing specifications. Configurable logic can implement different relationships without making those physical requirements disappear. (Texas Instruments: configurable logic datasheet)
Put the definition to work.
A device can contain a few individual gates or combine many gates into a more complicated function. Start with the function diagram when learning what a logic IC does.
Questions to ask next.
Use these questions as a reading checklist, not as a device-selection recommendation. Exact manufacturer documentation takes priority over a general definition.
- Required truth table
- Signal-level compatibility
- Timing and physical pin assignments
For the broader explanation, explore the complete integrated circuits guide. This page defines the term; the companion guide connects it to the rest of the system.
Common Logic gate questions.
Is a truth table a pinout?
No. A truth table defines logical input/output behavior. A pinout identifies the physical connections. A complete datasheet can contain both because they answer different questions. (Texas Instruments: configurable logic datasheet)