Specification	SN74LS280D

Current - Output High, Low [custom]	400 µA
Current - Output High, Low [custom]	8 mA
Logic Type	Parity Generator/Checker
Mounting Type	Surface Mount
Number of Circuits	9-Bit
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Voltage - Supply [Max]	5.25 V
Voltage - Supply [Min]	4.75 V

SN74LS280 Series

9-bit odd/even parity generators / checkers

Part	Mounting Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Number of Circuits	Voltage - Supply [Min]	Voltage - Supply [Max]	Logic Type	Operating Temperature [Max]	Package / Case [x]	Package / Case [y]	Package / Case	Supplier Device Package
Texas Instruments SN74LS280D	Surface Mount	400 µA	8 mA	9-Bit	4.75 V	5.25 V	Parity Generator/Checker	70 °C	0.154 in	3.9 mm	14-SOIC
Texas Instruments SN74LS280N	Through Hole	400 µA	8 mA	9-Bit	4.75 V	5.25 V	Parity Generator/Checker	70 °C	0.3 "	7.62 mm	14-DIP
Texas Instruments SN74LS280DR	Surface Mount	400 µA	8 mA	9-Bit	4.75 V	5.25 V	Parity Generator/Checker	70 °C	0.154 in	3.9 mm	14-SOIC
Texas Instruments SN74LS280NSR	Surface Mount	400 µA	8 mA	9-Bit	4.75 V	5.25 V	Parity Generator/Checker	70 °C	0.209 "	5.3 mm	14-SOIC	14-SO
Texas Instruments SN74LS280DRE4	Surface Mount	400 µA	8 mA	9-Bit	4.75 V	5.25 V	Parity Generator/Checker	70 °C	0.154 in	3.9 mm	14-SOIC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.57
		10	$ 1.41
		50	$ 1.33
		100	$ 1.14
		250	$ 1.07
		394	$ 0.76
		500	$ 0.93
Texas Instruments	TUBE	1	$ 1.30
		100	$ 1.07
		250	$ 0.77
		1000	$ 0.58

Description

General part information

SN74LS280 Series

These universal, monolithic, nine-bit parity generators/checkers utilize Schottky-clamped TTL high-performance circuitry and feature odd/even outputs to facilitate operation of either odd or even parity application. The word-length capability is easily expanded by cascading as shown under typical application data.

Series 54LS/74LS and Series 54S/74S parity generators/checkers offer the designer a trade-off between reduced power consumption and high performance. These devices can be used to upgrade the performance of most systems utilizing the '180 parity generator/checker. Although the 'LS280 and 'S280 are implemented without expander inputs, the corresponding function is provided by the availability of an input at pin 4 and the absence of any internal connection at pin 3. This permits the 'LS280 and 'S280 to be substituted for the '180 in existing designs to produce an identical function even if 'LS280's and 'S280's are mixed with existing '180's.

These devices are fully compatible with most other TTL circuits. All 'LS280 and 'S280 inputs are buffered to lower the drive requirements to one Series 54LS/74LS or Series 54S/74S standard load, respectively.

Documents

Technical documentation and resources

9-Bit Odd/Even Parity Generators/Checkers datasheet

Data sheet