SN74AHC04D Equivalent & Substitute Parts

Part Overview

The SN74AHC04D is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The SN74AHC04D serves as a fundamental building block in digital logic circuits requiring signal inversion across multiple channels with low power consumption and fast propagation delays.

Substiute Parts

SN74AHC04D

Texas InstrumentsIn Stock: 4053SN74AHC04D Datasheet

Current PartRFQ

SN74AHC04DR

Texas InstrumentsIn Stock: 2625SN74AHC04DR Datasheet

DirectRFQ

MC74VHC04DR2G

onsemiIn Stock: 1441MC74VHC04DR2G Datasheet

DirectRFQ

74AHC04D,118

Nexperia USA Inc.In Stock: 568974AHC04D,118 Datasheet

MFR RecommendedRFQ

74AHC04S14-13

Diodes IncorporatedIn Stock: 118774AHC04S14-13 Datasheet

MFR RecommendedRFQ

74AHCU04S14-13

Diodes IncorporatedIn Stock: 2022074AHCU04S14-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74AHC04D is determined by the following critical parameters:

• Logic Function: Must be a 6-channel inverter with 1 input per channel
• Voltage Supply Range: Must support 2V to 5.5V operation
• Output Current Capability: Must provide minimum 8mA output current (high and low)
• Propagation Delay: Must not exceed 7.5ns at 5V with 50pF load
• Package Compatibility: Must be available in 14-SOIC surface mount form factor
• Operating Temperature: Must support -40°C to 125°C range
• Compliance: Must maintain ROHS3 compliance

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct replacement in circuit designs originally specified for the SN74AHC04D.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SN74AHC04DR (Texas Instruments) is the direct equivalent with identical electrical specifications and active product status. This part maintains the same manufacturer lineage and performance characteristics as the discontinued SN74AHC04D.

Alternative Substitute: 74AHC04D,118 (Nexperia USA Inc.) provides equivalent performance with active availability and full temperature range support (-40°C to 125°C), matching the original part's operational envelope.

Secondary Options: 74AHC04S14-13 (Diodes Incorporated) and 74AHCU04S14-13 (Diodes Incorporated) are functionally compatible alternatives. The 74AHC04S14-13 maintains identical quiescent current specifications, while 74AHCU04S14-13 offers improved propagation delay (7ns vs 7.5ns) with slightly elevated quiescent current (20 µA).

Temperature-Constrained Application: MC74VHC04DR2G (onsemi) is suitable only for applications with operating temperature limits of -40°C to 85°C, as it does not support the full 125°C upper limit of the original specification.

All recommended substitutes maintain ROHS3 compliance and 14-SOIC package compatibility, ensuring mechanical and environmental regulatory alignment with the original design.

Frequently Asked Questions (FAQ)

Q: Can SN74AHC04DR be used as a direct replacement for SN74AHC04D?

A: Yes. SN74AHC04DR is electrically and mechanically identical to SN74AHC04D, with the primary difference being packaging format (Tape & Reel vs. Tube). Both are 6-channel inverters in 14-SOIC packages with identical voltage supply ranges, output current capabilities, and propagation delays. The SN74AHC04DR is currently in active production status.

Q: What is the difference between 74AHC04 and 74AHCU04 series?

A: Both are 6-channel inverters with identical logic function and output current specifications. The primary differences are input logic level thresholds and quiescent current. The 74AHCU04 series features wider input logic level ranges (0.3V to 1.1V for low, 1.7V to 4.4V for high) compared to 74AHC04 (0.5V to 1.65V for low, 1.5V to 3.85V for high), making it suitable for applications requiring greater input noise margin. The 74AHCU04S14-13 also provides faster propagation delay (7ns vs 7.5ns).

Q: Is MC74VHC04DR2G suitable for all applications requiring SN74AHC04D?

A: MC74VHC04DR2G is suitable only for applications operating within -40°C to 85°C. The original SN74AHC04D supports extended temperature operation to 125°C. If your application requires the full temperature range, select SN74AHC04DR, 74AHC04D,118, or the Diodes Incorporated alternatives instead.

Q: Does packaging format (Tube vs. Tape & Reel) affect electrical performance?

A: No. Packaging format affects only handling, storage, and automated assembly compatibility. Electrical specifications remain identical regardless of whether the part is supplied in Tube or Tape & Reel packaging. Select based on your procurement and assembly process requirements.

Q: What is the significance of the quiescent current difference between 2 µA and 20 µA?

A: Quiescent current represents power consumption when the device is not switching. For battery-powered or ultra-low-power applications, the 2 µA specification of SN74AHC04D, SN74AHC04DR, and MC74VHC04DR2G is preferable. For general-purpose applications, the 20 µA specification of Diodes Incorporated parts (74AHC04S14-13 and 74AHCU04S14-13) is acceptable and does not impact circuit functionality.

Q: Can I use 74AHCU04S14-13 in place of 74AHC04S14-13?

A: Yes, with consideration of input logic level thresholds. The 74AHCU04S14-13 provides faster propagation delay (7ns vs 7.5ns) and wider input logic level margins. It is a performance upgrade suitable for applications where the original 74AHC04S14-13 was specified, provided your signal sources can accommodate the different input threshold requirements.