CD54HC280F3A

Overview

The CD54HC280F3A is a high-speed CMOS logic device functioning as a 9-bit odd/even parity generator and checker. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -55°C to 125°C. The component features balanced propagation delay and transition times, with typical delays of 17ns at VCC = 5V and CL = 15pF. It provides both even (ΣE) and odd (ΣO) parity outputs for words up to nine bits long.

Feature Summary

• Generates or checks parity for data words up to nine bits in length
• Provides simultaneous even and odd parity output signals
• Capable of cascading multiple units for parity checking on words exceeding nine bits

Applications

• Data integrity verification in digital communication systems
• Memory subsystem error detection circuits
• Digital signal processing input validation

Procurement Notes

Verify the complete part number including suffixes when ordering. Confirm that the specific variant matches the required package type and temperature rating. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

Selection Notes

Select this component for applications requiring robust parity generation or checking capabilities within wide voltage and temperature ranges. Consider the HC series specifications for general-purpose use or HCT variants if direct LSTTL input compatibility is necessary. Evaluate power consumption and noise immunity requirements against the provided electrical characteristics.

Part Context

This device belongs to the Texas Instruments High-Speed CMOS Logic family. It serves as a replacement for older LS180 types while offering significant power reduction. The product line includes catalog and military-qualified versions, ensuring availability for diverse industrial and defense applications requiring reliable logic functions.

Replacement Considerations

CD54HCT280F3A