SN74LS280N

Overview

The SN74LS280N is a 9-bit odd/even parity generator/checker from the Texas Instruments LS logic family. It features nine data inputs and two complementary outputs for odd and even parity verification. The device operates on a single 5 V supply with a maximum current consumption of 27 mA. It utilizes a standard 14-pin dual in-line package (PDIP) designed for through-hole mounting. The component supports a propagation delay of up to 45 ns and functions within a commercial temperature range of 0 °C to 70 °C.

Feature Summary

• Provides simultaneous generation and checking of 9-bit odd and even parity states
• Delivers complementary outputs indicating distinct odd or even parity conditions
• Compatible with standard TTL logic families for straightforward integration

Applications

• Data transmission error detection systems
• Digital memory address verification circuits
• Computer bus interface parity monitoring

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides valid traceability for the LS logic series component. Confirm that the physical package matches the required through-hole mounting configuration before finalizing acquisition.

Selection Notes

Select this component when a dedicated 9-bit parity solution is required within a standard TTL environment. The LS technology offers a balance of speed and power consumption suitable for general-purpose digital logic applications. Consider the PDIP package availability if prototyping or manual assembly is necessary for the target design.

Part Context

This integrated circuit belongs to the SN54/74LS280 family, which includes variants such as the SN74S280 and SN54LS280. These devices share the core functionality of 9-bit parity processing but may differ in speed grades or military-grade environmental ratings depending on the specific suffix designation used by the manufacturer.

Replacement Considerations

SN74ALS280N