CD74ACT280M Equivalent & Substitute Parts

Part Overview

The CD74ACT280M 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. The CD74ACT280M operates within the 74ACT logic family standard, providing parity generation and checking functionality for digital systems requiring error detection capabilities. Identifying equivalent substitute parts is necessary due to the Last Time Buy status and finite stock availability.

Substiute Parts

CD74ACT280M

Texas InstrumentsIn Stock: 3792CD74ACT280M Datasheet

Current PartRFQ

CD74ACT280M96

Texas InstrumentsIn Stock: 1460CD74ACT280M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74ACT280M is determined by strict equivalence across the following critical parameters:

• Logic function: Parity Generator/Checker with 9-bit configuration
• Electrical specifications: 4.5 V ~ 5.5 V supply voltage, 24mA output current (high and low)
• Operating temperature range: -55°C ~ 125°C
• Package type: 14-SOIC surface mount package with 0.154" (3.90mm) width
• Base product number: 74ACT280
• Compliance standards: ROHS3 Compliant, REACH Unaffected

The CD74ACT280M96 qualifies as a direct substitute based on identical electrical characteristics, functional specification, and package configuration. The primary distinction is packaging format: the CD74ACT280M is supplied in Tube packaging, while the CD74ACT280M96 is supplied in Tape & Reel (TR) format. Both variants share the same silicon die and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The CD74ACT280M96 is a direct functional and electrical equivalent to the CD74ACT280M. Selection between these parts should be based on the following factors:

The CD74ACT280M is subject to Last Time Buy status with finite inventory (3733 Pcs), indicating this part number will not be replenished. The CD74ACT280M96 maintains Active product status with ongoing availability (1397 Pcs in current inventory), ensuring long-term supply continuity.

Both parts meet ROHS3 compliance and REACH requirements. The electrical and functional specifications are identical, including supply voltage range, output current ratings, operating temperature range, and logic performance.

The primary consideration is packaging format. The CD74ACT280M is supplied in Tube packaging, suitable for manual handling and small-quantity assembly operations. The CD74ACT280M96 is supplied in Tape & Reel format, optimized for automated pick-and-place assembly processes. Selection should align with manufacturing process requirements and assembly equipment capabilities.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT280M96 be used as a direct replacement for the CD74ACT280M in existing designs?

A: Yes. The CD74ACT280M96 is electrically and functionally identical to the CD74ACT280M. Both parts share the same 14-SOIC package dimensions, pin configuration, voltage specifications (4.5 V ~ 5.5 V), output current ratings (24mA), and operating temperature range (-55°C ~ 125°C). No circuit modifications are required.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies individual components in a plastic tube, suitable for manual assembly and small production runs. Tape & Reel packaging supplies components on a continuous carrier tape wound on a reel, optimized for automated assembly equipment. Both formats contain identical components with identical electrical performance.

Q: Why is the CD74ACT280M designated as Last Time Buy?

A: Last Time Buy designation indicates Texas Instruments has discontinued production of this part number. Existing inventory will be sold until depletion, after which the part will no longer be available. The CD74ACT280M96 (Active status) is the recommended alternative for future procurement.

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

A: No. Both the CD74ACT280M and CD74ACT280M96 are ROHS3 Compliant and REACH Unaffected. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for both parts, indicating no special moisture handling requirements during storage or assembly.

Q: What is the 74ACT series classification?

A: The 74ACT series represents advanced CMOS logic technology from Texas Instruments, providing TTL-compatible logic levels with CMOS power efficiency. The CD74ACT280M and CD74ACT280M96 are both members of this series, ensuring compatibility with 74ACT-based digital systems.