SN74F260D Equivalent & Substitute Parts

Part Overview

The SN74F260D is a NOR Gate IC featuring 2 channels with 5 inputs per channel, packaged in a 14-SOIC surface mount configuration. Manufactured by Texas Instruments, this logic component operates within the 74F series and is classified as Last Time Buy status. The SN74F260D is necessary to identify alternative models due to its Last Time Buy designation, which indicates limited future availability. Substitute parts must maintain identical functional specifications, electrical characteristics, and package compatibility to ensure direct replacement capability in existing designs.

Substiute Parts

SN74F260D

Texas InstrumentsIn Stock: 2415SN74F260D Datasheet

Current PartRFQ

SN74F260DR

Texas InstrumentsIn Stock: 2529SN74F260DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F260D is determined by strict equivalence across the following critical parameters:

• Logic Type: NOR Gate configuration with identical 2-channel, 5-input architecture
• Electrical Specifications: Supply voltage range (4.5V ~ 5.5V), output current ratings (1mA, 20mA), input logic levels (0.8V low, 2V high), and propagation delay (5.5ns @ 5V, 50pF)
• Package Compatibility: 14-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width)
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating
• Operating Temperature Range: 0°C ~ 70°C

The SN74F260DR qualifies as a direct substitute based on matching all functional and electrical parameters. The primary distinction is packaging format: the SN74F260D is supplied in Tube packaging, while the SN74F260DR is supplied in Tape & Reel (TR) format. Both parts share identical base product number (74F260) and maintain equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74F260DR is the recommended substitute for the SN74F260D. Both parts are manufactured by Texas Instruments and maintain identical electrical and functional specifications across all critical parameters. The SN74F260DR holds Active product status, providing superior long-term availability compared to the Last Time Buy designation of the SN74F260D.

The primary consideration for selection is packaging format. The SN74F260D is supplied in Tube packaging, suitable for lower-volume applications and manual assembly processes. The SN74F260DR is supplied in Tape & Reel format, optimized for automated pick-and-place assembly operations. Both packaging formats contain the identical die and deliver equivalent performance.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols. Selection between these parts should be based on assembly methodology and supply chain requirements rather than functional or electrical considerations.

Frequently Asked Questions (FAQ)

Q: Can the SN74F260DR directly replace the SN74F260D in existing designs?

A: Yes. The SN74F260DR is a direct functional and electrical equivalent. Both parts feature identical NOR gate logic configuration, electrical specifications, operating temperature range, and 14-SOIC package dimensions. Substitution requires no circuit modifications.

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

A: Tube packaging supplies components in plastic tubes, typically used for manual assembly or lower-volume production. Tape & Reel packaging supplies components on continuous tape wound on reels, optimized for automated assembly equipment. The components themselves are identical; packaging format differs only in handling and assembly methodology.

Q: Why is the SN74F260D designated as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has announced the end of production for this part number. Existing inventory remains available, but future production is not planned. The SN74F260DR, with Active status, represents the recommended path for new designs and long-term supply continuity.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts deliver identical electrical performance: 4.5V to 5.5V supply voltage, 5.5ns maximum propagation delay at 5V with 50pF load, and matching input/output current specifications. Performance is equivalent across all operating conditions within the specified temperature range.

Q: What compliance certifications apply to both parts?

A: Both the SN74F260D and SN74F260DR are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Both parts are REACH Unaffected and classified under ECCN EAR99 for export purposes.