SN74F280BD Equivalent & Substitute Parts

Part Overview

The SN74F280BD is a 9-bit parity generator/checker logic integrated circuit manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating limited availability and the necessity to identify suitable alternatives for ongoing production requirements. The part operates within a 4.5V to 5.5V supply voltage range and is designed for applications requiring parity generation and checking functions in digital logic systems.

Substiute Parts

SN74F280BD

Texas InstrumentsIn Stock: 2131SN74F280BD Datasheet

Current PartRFQ

SN74F280BDR

Texas InstrumentsIn Stock: 3683SN74F280BDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F280BD is determined by strict equivalence across the following critical parameters:

• Logic function: Parity Generator/Checker with 9-bit configuration
• Package type: 14-SOIC surface mount form factor with 0.154" width (3.90mm)
• Electrical specifications: 4.5V to 5.5V supply voltage, 1mA/20mA output current ratings
• Operating temperature range: 0°C to 70°C
• Compliance certifications: ROHS3 Compliant, REACH Unaffected

The SN74F280BDR qualifies as a direct substitute based on identical electrical characteristics, pinout compatibility, and functional equivalence. The primary distinction is packaging format: the SN74F280BD is supplied in Tube packaging, while the SN74F280BDR is supplied in Tape & Reel (TR) format. Both share the same base product number (74F280) and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The SN74F280BDR is the direct equivalent substitute for the SN74F280BD. Both parts are manufactured by Texas Instruments with identical electrical and functional specifications. The SN74F280BDR maintains Active product status, whereas the SN74F280BD is designated Last Time Buy, making the SN74F280BDR the preferred selection for new designs and ongoing production.

Selection between these parts is determined by packaging requirements: Tube packaging (SN74F280BD) is suitable for lower-volume applications or manual assembly processes, while Tape & Reel packaging (SN74F280BDR) is optimized for automated pick-and-place assembly operations. Both parts satisfy identical compliance requirements, including ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the SN74F280BDR be used as a direct replacement for the SN74F280BD?

A: Yes. The SN74F280BDR is a direct functional and electrical equivalent. Both parts share identical pinout, voltage specifications, current ratings, and operating temperature ranges. The only difference is packaging format: Tube versus Tape & Reel.

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

A: Tube packaging is used for manual handling and lower-volume assembly. Tape & Reel packaging is designed for automated assembly equipment. The components themselves are electrically and functionally identical.

Q: Why is the SN74F280BD marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments is discontinuing this part number. The SN74F280BDR, with Active status, is the recommended alternative for continued supply.

Q: Are there any compatibility concerns when switching from SN74F280BD to SN74F280BDR?

A: No compatibility concerns exist. Both parts are pin-for-pin compatible with identical electrical characteristics. PCB layout and circuit design require no modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74F280BD and SN74F280BDR are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory requirements.