CD74HC280E

Overview

The CD74HC280E is a 9-bit parity generator and checker manufactured by Harris Corporation. It operates within the HC/UH logic series and features complementary outputs for odd/even parity generation. The device is housed in a 14-pin PDIP plastic package. It supports a supply voltage range of 2V to 6V and functions reliably across an operating temperature range of -55°C to +125°C. The propagation delay is specified at 300 ns.

Feature Summary

• Generates or checks 9-bit parity with complementary output signals
• Operates on standard CMOS technology compatible with HC/UH series standards
• Designed for robust performance across extended industrial temperature ranges

Applications

• Digital communication systems requiring error detection
• Data processing circuits utilizing parity checking
• Industrial control logic involving data integrity verification

Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by Renesas Electronics. Confirm that the specific unit corresponds to the original Harris production or the subsequent Renesas lineage. Ensure the component matches the PDIP-14 package specification and HC series electrical characteristics required for your circuit design.

Selection Notes

Select this component when a 9-bit parity function is required in a through-hole DIP package. The HC series offers standard CMOS compatibility. Consider the 300 ns propagation delay for timing constraints. Verify RoHS compliance status, as older Harris units may not meet current environmental regulations compared to modern equivalents.

Part Context

This part belongs to the 74HC logic family, widely used for general-purpose digital applications. The CD74 prefix indicates a commercial grade variant. Harris Corporation was a significant producer before its semiconductor division was acquired, leading to potential variations in sourcing between original Harris stock and current Renesas-manufactured parts.

Replacement Considerations

CD74HC280E96 is a documented equivalent from Renesas Electronics.