SN74F08D Equivalent & Substitute Parts

Part Overview

The SN74F08D is a 4-channel AND gate logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This component implements four independent 2-input AND gates in a single integrated circuit package. The SN74F08D is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this logic function.

Substiute Parts

SN74F08D

Texas InstrumentsIn Stock: 2202SN74F08D Datasheet

Current PartRFQ

SN74F08DR

Texas InstrumentsIn Stock: 4157SN74F08DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F08D is determined by strict equivalence across the following critical parameters:

• Logic function: 4-channel AND gate with 2 inputs per channel
• Electrical specifications: 4.5V ~ 5.5V supply voltage, 1mA/20mA output current, 5.6ns propagation delay at 5V with 50pF load
• Input logic levels: 0.8V low threshold, 2V high threshold
• Package type: 14-SOIC surface mount form factor
• Thermal range: 0°C ~ 70°C operating temperature
• Compliance: ROHS3 compliant, MSL Level 1

The SN74F08DR qualifies as a direct substitute based on identical electrical performance, logic configuration, and package specifications. The primary difference is packaging format: the SN74F08D is supplied in Tube packaging, while the SN74F08DR is supplied in Tape & Reel (TR) format. Both parts share the same base product number (74F08) and are manufactured by Texas Instruments.

Parameter Comparison

Engineering Selection Recommendations

The SN74F08DR is the direct substitute for the SN74F08D. Both parts are manufactured by Texas Instruments and maintain identical electrical and functional specifications. The SN74F08D is in Last Time Buy status, while the SN74F08DR maintains Active product status, making it the recommended selection for new designs and ongoing production requirements.

Both parts meet ROHS3 compliance and carry MSL Level 1 rating, indicating no moisture sensitivity constraints during storage and handling. The packaging difference—Tube versus Tape & Reel—reflects supply chain and manufacturing process variations but does not affect component performance or PCB assembly compatibility when using appropriate handling equipment.

Frequently Asked Questions (FAQ)

Q: Can the SN74F08DR be used as a direct replacement for the SN74F08D in existing designs?

A: Yes. The SN74F08DR is electrically and functionally identical to the SN74F08D. Both parts implement the same 4-channel AND gate logic with identical electrical specifications, operating temperature range, and 14-SOIC package dimensions. The only difference is the packaging format supplied by the manufacturer.

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

A: Tube packaging supplies components in plastic tubes for manual handling and small-quantity applications. Tape & Reel packaging supplies components on continuous carrier tape wound on reels for automated pick-and-place assembly equipment. Both formats contain the same component with identical performance characteristics.

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

A: No. Both the SN74F08D and SN74F08DR carry identical ROHS3 compliance and MSL Level 1 ratings. Compliance certifications and environmental classifications are equivalent.

Q: Why is the SN74F08D marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. The SN74F08DR, which maintains Active status, is the recommended alternative for continued supply and future production requirements.

Q: Will the SN74F08DR work in my PCB assembly process?

A: Yes, provided your assembly equipment supports the Tape & Reel packaging format. The component itself is identical in form factor and pin configuration. Verify that your pick-and-place equipment can process 14-SOIC components from carrier tape.