N74F08D,623 Equivalent & Substitute Parts

Part Overview

The N74F08D,623 is a 4-channel 2-input AND gate logic IC manufactured by Nexperia USA Inc. in a 14-SO surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part operates within a 4.5V to 5.5V supply voltage range and is suitable for digital logic applications requiring AND gate functionality with fast propagation delay characteristics.

Substiute Parts

N74F08D,623

Nexperia USA Inc.In Stock: 10320N74F08D,623 Datasheet

Current PartRFQ

SN74F08D

Texas InstrumentsIn Stock: 2202SN74F08D Datasheet

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SN74F08DR

Texas InstrumentsIn Stock: 4157SN74F08DR Datasheet

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SN74F08NSR

Texas InstrumentsIn Stock: 5199SN74F08NSR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the N74F08D,623 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Logic Type: AND Gate
• Number of Circuits: 4
• Number of Inputs: 2
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: 1mA, 20mA
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Max Propagation Delay @ V, Max CL: 5.6ns @ 5V, 50pF
• Operating Temperature: 0°C ~ 70°C

Mechanical Parameters (Allowed Variation):

• Mounting Type: Surface Mount (required)
• Package / Case: 14-SOIC variants with width tolerance (0.154" to 0.209")
• Supplier Device Package: 14-SOIC or 14-SO

All substitute parts maintain identical electrical performance and logic functionality while accommodating minor package footprint variations within the 14-SOIC family.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SN74F08DR

The SN74F08DR is the recommended substitute for new designs and production. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. It is supplied in Tape & Reel packaging, which is standard for automated assembly operations. All electrical parameters and operating characteristics are identical to the N74F08D,623. ROHS3 compliance and MSL 1 rating match the original specification.

Secondary Substitute: SN74F08D

The SN74F08D is suitable for applications where tube packaging is acceptable. This part carries Last Time Buy status, indicating limited future availability. It is electrically equivalent to the primary substitute and maintains full compliance with environmental and regulatory requirements.

Tertiary Substitute: SN74F08NSR

The SN74F08NSR is an active product with identical electrical performance. This part features a wider package footprint (0.209" vs. 0.154"), which may require PCB layout verification for existing designs. It is supplied in Tape & Reel packaging and is suitable for new production runs where package width tolerance is acceptable.

Frequently Asked Questions (FAQ)

Q: Can SN74F08DR be used as a direct replacement for N74F08D,623 on existing PCBs?

A: Yes. The SN74F08DR is electrically and functionally identical to the N74F08D,623. Both parts use the 14-SOIC package with 0.154" width (3.90mm), ensuring compatible PCB footprints. No circuit modifications are required.

Q: What is the difference between SN74F08D and SN74F08DR?

A: Both parts are electrically identical. The primary difference is packaging: SN74F08D is supplied in Tube packaging, while SN74F08DR is supplied in Tape & Reel (TR) format. Tape & Reel is preferred for high-volume automated assembly. SN74F08DR also maintains active product status, while SN74F08D is Last Time Buy.

Q: Can SN74F08NSR be used instead of SN74F08DR?

A: SN74F08NSR is electrically equivalent and functionally interchangeable. However, it has a wider package footprint (0.209" vs. 0.154"). Verify PCB layout compatibility before substitution, as the increased width may cause clearance issues in densely routed designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (SN74F08D, SN74F08DR, SN74F08NSR) are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original N74F08D,623 specification.

Q: Which substitute should be selected for new production?

A: SN74F08DR is the recommended choice for new production. It maintains active product status with Texas Instruments, ensuring reliable long-term supply. Tape & Reel packaging is standard for automated assembly operations.