74HC280D,652 Equivalent & Substitute Parts

Part Overview

The 74HC280D,652 is a 9-bit parity generator/checker logic integrated circuit manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across a 2 V to 6 V supply voltage range and is fully RoHS3 compliant with unlimited moisture sensitivity rating.

Substiute Parts

74HC280D,652

Nexperia USA Inc.In Stock: 92574HC280D,652 Datasheet

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CD74HC280M96

Texas InstrumentsIn Stock: 2987CD74HC280M96 Datasheet

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CD74HC280MT

Texas InstrumentsIn Stock: 1079CD74HC280MT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HC280D,652 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Logic Type: Parity Generator/Checker (identical function)
• Number of Circuits: 9-Bit (identical bit width)
• Package / Case: 14-SOIC (0.154", 3.90mm Width) (identical footprint and pinout)
• Voltage - Supply: 2 V ~ 6 V (identical operating range)
• Series: 74HC (same logic family)
• Base Product Number: 74HC280 (same base design)
• RoHS Status: ROHS3 Compliant (regulatory compliance maintained)
• Moisture Sensitivity Level: 1 (Unlimited) (identical handling requirements)

The identified substitutes CD74HC280M96 and CD74HC280MT from Texas Instruments meet all these criteria and are therefore direct functional and mechanical equivalents.

Parameter Comparison

Engineering Selection Recommendations

Both CD74HC280M96 and CD74HC280MT are direct substitutes for the obsolete 74HC280D,652. Selection between them should be based on product availability and procurement timeline:

CD74HC280M96 is recommended as the primary substitute due to its Active product status, ensuring long-term availability and continued manufacturing support. This part is suitable for new designs and ongoing production requirements.

CD74HC280MT is available as a secondary option but carries Last Time Buy status, indicating limited future availability. This part is appropriate only for legacy system maintenance or short-term production runs where immediate availability is critical.

Both substitutes maintain full regulatory compliance (RoHS3, REACH Unaffected) and identical electrical and mechanical specifications within the provided parameters.

Frequently Asked Questions (FAQ)

Q: Are CD74HC280M96 and CD74HC280MT pin-for-pin compatible with 74HC280D,652?

A: Yes. All three parts share the identical 14-SOIC package footprint (0.154", 3.90mm Width) and base product number 74HC280, ensuring direct pin-for-pin compatibility without PCB redesign.

Q: What is the difference between CD74HC280M96 and CD74HC280MT?

A: Both parts are functionally and electrically identical. The primary difference is product status: CD74HC280M96 is Active with ongoing manufacturing, while CD74HC280MT is Last Time Buy with limited future availability. For new designs, CD74HC280M96 is the preferred choice.

Q: Can these substitutes be used in existing assemblies designed for 74HC280D,652?

A: Yes. The identical package, pinout, voltage supply range (2 V ~ 6 V), and 9-bit parity generator/checker function enable direct substitution in existing PCB assemblies without modification.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts are RoHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, maintaining identical regulatory and handling requirements.

Q: What is the supply voltage compatibility range for these substitutes?

A: All parts operate across 2 V to 6 V supply voltage range, ensuring compatibility across standard logic voltage levels including 3.3 V and 5 V systems.