CD74HC280MT Equivalent & Substitute Parts

Part Overview

The CD74HC280MT is a 9-bit parity generator/checker logic integrated circuit manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Equivalent and substitute parts are necessary to ensure design continuity and long-term component availability for applications requiring 9-bit parity generation and checking functionality.

Substiute Parts

CD74HC280MT

Texas InstrumentsIn Stock: 1079CD74HC280MT Datasheet

Current PartRFQ

CD74HC280M96

Texas InstrumentsIn Stock: 2987CD74HC280M96 Datasheet

MFR RecommendedRFQ

74HC280D,653

NXP SemiconductorsIn Stock: 2772074HC280D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC280MT is determined by the following critical parameters:

• Logic Type: Parity Generator/Checker (9-Bit)
• Package / Case: 14-SOIC surface mount configuration
• Voltage - Supply: 2 V ~ 6 V operating range
• Current - Output High, Low: 5.2mA, 5.2mA
• Operating Temperature: -55°C ~ 125°C
• Base Product Number: 74HC280

All identified substitute parts maintain identical electrical specifications and package footprint compatibility, enabling direct functional replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

CD74HC280M96 is the manufacturer-recommended substitute from Texas Instruments. This part maintains identical electrical and mechanical specifications with the main part number while offering Active product status and higher inventory availability (2900 units in stock versus 1015 units for the main part). Both parts carry ROHS3 compliance and equivalent moisture sensitivity ratings.

74HC280D,653 from NXP Semiconductors is an alternative substitute based on the 74HC280 base product number. This part maintains Active product status with significantly higher inventory availability (27670 units in stock). However, complete electrical and mechanical parameter specifications are not provided in the available data.

For applications requiring documented parameter equivalence and manufacturer continuity, CD74HC280M96 is the primary selection. For applications where alternative manufacturer sourcing is acceptable, 74HC280D,653 provides extended availability subject to verification of complete specifications with the supplier.

Frequently Asked Questions (FAQ)

Q: Can CD74HC280M96 be used as a direct replacement for CD74HC280MT?

A: Yes. CD74HC280M96 is the manufacturer-recommended substitute with identical electrical specifications (2 V ~ 6 V supply, 5.2mA output current, -55°C ~ 125°C operating range), identical 9-bit parity generator/checker functionality, and identical 14-SOIC package configuration.

Q: What is the difference between CD74HC280MT and CD74HC280M96?

A: The primary difference is product status. CD74HC280MT is Last Time Buy (discontinued), while CD74HC280M96 is Active. Both parts are manufactured by Texas Instruments with identical electrical and mechanical specifications.

Q: Is 74HC280D,653 compatible with CD74HC280MT?

A: 74HC280D,653 shares the same 74HC280 base product number and 9-bit parity generator functionality. However, complete electrical and mechanical parameter specifications for this NXP part are not fully documented in available data. Verification with the supplier is required before implementation.

Q: What packaging format is used for these parts?

A: CD74HC280MT and CD74HC280M96 are supplied in Tape & Reel (TR) packaging for surface mount assembly. 74HC280D,653 is supplied in Bulk packaging format.

Q: Are these parts RoHS compliant?

A: CD74HC280MT and CD74HC280M96 are ROHS3 compliant. RoHS compliance status for 74HC280D,653 is not specified in available data.