# Parity generator / checker

Canonical URL: https://eloragrid.ai/symbols/parity-generator-checker
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: PARITY
Drawing use: Schematic
Reference families: Manufacturer

Computes a parity indication from the defined digital input word.

## What it represents

Computes a parity indication from the defined digital input word.
On a schematic, identify the data width, odd/even convention and cascade mapping and trace the parity output and check/alarm interface. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
A parity check detects a defined class of bit errors; it is not a complete CRC, data-integrity or safety protocol.
The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing.

## How to read it

- Identify the data width, odd/even convention and cascade mapping.
- Trace the parity output and check/alarm interface.

## Information to show or reference

- Label the data width, odd/even convention and cascade mapping.
- Cross-reference the parity output and check/alarm interface.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.

## Important distinction

A parity check detects a defined class of bit errors; it is not a complete CRC, data-integrity or safety protocol.

## Facts

- Common schematic mnemonic: PARITY — descriptive only; project/device documentation defines reference designations.
- Terminal / interface focus: The data width, odd/even convention and cascade mapping
- Artwork scope: Original educational functional/circuit reference; not a selected product pinout.

## Public references

- [SN74LS280 — odd/even parity generation and checking](https://www.ti.com/product/SN74LS280) — Texas Instruments. Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.