SN74AS02NG4 Equivalent & Substitute Parts

Part Overview

The SN74AS02NG4 is a NOR Gate IC with 4 channels and 2 inputs per channel, packaged in a 14-PDIP form factor. This component is classified as discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. The SN74AS02 series provides standard logic gating functionality with TTL-compatible voltage levels and propagation characteristics suitable for digital logic circuits requiring NOR gate operations.

Substiute Parts

SN74AS02NG4

Texas InstrumentsIn Stock: 1144SN74AS02NG4 Datasheet

Current PartRFQ

SN74AS02N

Texas InstrumentsIn Stock: 3338SN74AS02N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74AS02NG4 is determined by matching the following critical parameters:

• Logic Type: NOR Gate (4 channels, 2 inputs per channel)
• Voltage Supply Range: 4.5V ~ 5.5V
• Current Output Specifications: 2mA (high), 20mA (low)
• Input Logic Levels: 0.8V (low), 2V (high)
• Propagation Delay: 4.5ns @ 5V, 50pF
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-DIP Through Hole
• Base Product Series: 74AS02

The SN74AS02N qualifies as a direct substitute because it maintains identical electrical characteristics, logic configuration, and physical packaging while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS02N is the recommended substitute for the SN74AS02NG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The primary advantage of selecting SN74AS02N is its active product status, ensuring continued availability and supply chain reliability. Both parts comply with ROHS3 and REACH standards, maintaining equivalent regulatory compliance. The packaging difference (tube versus standard packaging for the main part) does not affect functional compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can SN74AS02N be used as a direct replacement for SN74AS02NG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching logic configuration, voltage specifications, propagation delay, and 14-DIP package dimensions. The substitution requires no circuit modifications.

Q: What is the difference between SN74AS02NG4 and SN74AS02N?

A: The primary difference is product status. SN74AS02NG4 is discontinued at DiGi Electronics, while SN74AS02N maintains active status. Electrical specifications and package type are identical.

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

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and EAR99 ECCN classification.

Q: Does the packaging format affect circuit performance?

A: No. Both parts use the same 14-DIP (0.300", 7.62mm) through-hole package. Packaging format (tube versus standard) is a supply consideration only and does not impact electrical performance or board-level compatibility.

Q: What are the critical parameters for confirming substitution compatibility?

A: Verify that the substitute maintains the 4-channel NOR gate configuration, 2 inputs per channel, 4.5V ~ 5.5V supply voltage, 2mA/20mA output current, 0.8V/2V input logic levels, 4.5ns propagation delay, and 14-DIP package type.