CD74ACT280M

Overview

The CD74ACT280M is a 9-bit Parity Generator/Checker integrated circuit manufactured by Harris Corporation. It operates within a supply voltage range of 1.5 V to 5.5 V and features a propagation delay of 263 ns. The device provides high-level output currents of -24 mA and low-level output currents of 24 mA. It is housed in a 14-SOIC package with a width of 3.90 mm. The component supports an operating temperature range from -55°C to +125°C and has a maximum power supply current of 8 µA.

Feature Summary

• Performs 9-bit parity generation and checking functions
• Operates across a wide supply voltage range from 1.5 V to 5.5 V
• Supports surface mount installation in a 14-SOIC package

Applications

• High-speed digital data transmission systems
• Memory error detection circuits
• Digital communication interface parity verification

Procurement Notes

Verify the manufacturer designation, as sources list both Harris Corporation and Texas Instruments for this part number. Confirm the specific suffix 'M' corresponds to the SOIC package variant. Check for obsolete status indicators, as some listings mark the CD74AC280 series as end-of-life. Ensure datasheet alignment with the ACT logic family specifications rather than AC or HCT variants.

Selection Notes

Select this component when 9-bit parity processing is required in high-performance digital environments. The ACT logic family offers faster switching speeds compared to standard AC or HC families. Verify that the 1.5 V to 5.5 V operating range matches the system power rails. Consider the 14-SOIC footprint for PCB layout compatibility. Evaluate thermal requirements given the extended temperature range capability.

Part Context

This device belongs to the 74ACT logic family, known for CMOS performance with TTL-compatible inputs. It serves as a specialized function block within larger digital systems for data integrity verification. The part represents a transition era component from Harris Corporation before its semiconductor assets were acquired by other entities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.