74LS280 9-bit Odd/Even Parity Generator

The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC. 74LS280 universal, monolithic, nine-bit parity generators/checkers utilize Schottky-clamped TTL high-performance circuitry and feature odd/even outputs to facilitate the operation of either odd or even parity application

74LS280 Features

• Generates Either Odd or Even Parity for Nine Data Lines
• Cascadable for n-bits
• Useful for Upgrading Existing Systems using MSI Parity Circuits
• Fast Propagation Speeds
• Low Power Dissipation

74LS280 Specifications

Supply Voltage	4.75 – 5.25Vdc
Maximum Clock Frequency	40Mhz
Power Dissipation	2mW/gate @100kHz
Minimum Output Current	8mA
Propagation Delay	10nS
Fan Out (TTL Loads)	20

74LS280 Pinout Diagram

74LS280 Pin Description

Pin No	Pin Name	Description
1	G	Data Input
2	H	Data Input
3	NC	No Connection
4	I IN	Inverting Input
5	Σ EVEN	Sum For Even Output
6	Σ ODD	Sum For Odd Output
7	GND	Ground
8	A	Data Input
9	B	Data Input
10	C	Data Input
11	D	Data Input
12	E	Data Input
13	F	Data Input
14	VCC	Positive Supply

Applications

• Digital systems to detect single-bit errors in the transmitted data

74LS280 Alternative Equivalent

Download the 74LS280 9-bit Odd/Even Parity Generator Datasheet from the link given below.