74VHC04M Equivalent & Substitute Parts

Part Overview

The 74VHC04M is a 6-channel inverter logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. The 74VHC04M operates across a 2V to 5.5V supply voltage range with 6 independent inverter circuits, each with single input configuration. Substitute parts maintain functional equivalence while offering improved availability and extended product lifecycle support.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	2V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	8mA, 8mA
Max Propagation Delay @ 5V, 50pF	7.5ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74VHC04M is determined by the following critical parameters: logic type (inverter), circuit count (6 channels), input configuration (1 input per channel), supply voltage range (2V ~ 5.5V), output current capability (8mA), propagation delay performance (7.5ns @ 5V, 50pF), and package type (14-SOIC surface mount).

Substitute parts are grouped into three categories:

Direct Substitutes maintain all electrical and mechanical specifications of the 74VHC04M. These parts are pin-compatible and functionally equivalent with identical propagation delay and operating temperature ranges.

Upgrade Substitutes offer enhanced specifications including extended operating temperature ranges (-55°C to 125°C) or automotive-grade qualification (AEC-Q100). These parts are fully backward compatible and provide superior performance margins.

Similar Substitutes use alternative package designations (14-SO versus 14-SOIC) or different manufacturers while maintaining electrical equivalence. Package footprint compatibility must be verified during PCB layout.

Parameter Comparison

Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Output Current (High/Low)	Propagation Delay @ 5V, 50pF	Operating Temperature	Package	Product Status
74VHC04M	onsemi	74VHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 85°C	14-SOIC	Obsolete
SN74AHC04D	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SOIC	Discontinued at DiGi Electronics
SN74AHC04DR	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SOIC	Active
SN74AHCU04D	Texas Instruments	74AHCU	2V ~ 5.5V	2 µA	8mA, 8mA	7ns	-40°C ~ 85°C	14-SOIC	Last Time Buy
SN74AHCU04DR	Texas Instruments	74AHCU	2V ~ 5.5V	2 µA	8mA, 8mA	7ns	-40°C ~ 85°C	14-SOIC	Active
SN74AHC04MDREP	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-55°C ~ 125°C	14-SOIC	Active
SN74AHC04QDR	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SOIC	Active
SN74AHC04QDRG4Q1	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SOIC	Active
SN74AHC04QDRQ1	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SOIC	Active
74AHC04D,118	Nexperia USA Inc.	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SO	Active
SN74AHC04NSR	Texas Instruments	74AHC	2V ~ 5.5V	2 µA	8mA, 8mA	7.5ns	-40°C ~ 125°C	14-SO	Active

Engineering Selection Recommendations

Primary Recommendation: SN74AHC04DR (Texas Instruments)

The SN74AHC04DR is the preferred direct substitute. It maintains identical electrical specifications to the 74VHC04M while offering extended operating temperature range (-40°C to 125°C) and active product status. This part is available in Tape & Reel packaging and carries ROHS3 compliance with unlimited moisture sensitivity rating.

Extended Temperature Applications: SN74AHC04MDREP (Texas Instruments)

For applications requiring operation across -55°C to 125°C, the SN74AHC04MDREP provides the widest temperature envelope. This upgrade substitute maintains all other electrical parameters and is suitable for industrial and military-grade applications.

Automotive Applications: SN74AHC04QDR, SN74AHC04QDRG4Q1, SN74AHC04QDRQ1 (Texas Instruments)

These variants carry AEC-Q100 automotive qualification and are suitable for automotive-grade designs. All three maintain identical electrical specifications with -40°C to 125°C operating range and active product status.

Alternative Manufacturers: 74AHC04D,118 (Nexperia), SN74AHC04NSR (Texas Instruments)

These parts use 14-SO packaging (0.209" width) instead of 14-SOIC (0.154" width). Electrical specifications remain equivalent, but PCB footprint compatibility must be verified before selection.

Legacy Consideration: SN74AHCU04D, SN74AHCU04DR (Texas Instruments)

The 74AHCU series offers marginally faster propagation delay (7ns versus 7.5ns) but is classified as Last Time Buy. These parts are suitable only for existing designs with no new production planned.

Frequently Asked Questions (FAQ)

Q: Can SN74AHC04DR directly replace 74VHC04M without PCB modification?

A: Yes. The SN74AHC04DR is pin-compatible with identical 14-SOIC package dimensions (0.154", 3.90mm width). No PCB layout changes are required. Electrical specifications are equivalent across the specified supply voltage range (2V ~ 5.5V) and operating temperature range (-40°C ~ 85°C overlap).

Q: What is the difference between 14-SOIC and 14-SO packages?

A: Both are surface mount packages with 14 pins, but differ in body width. 14-SOIC measures 0.154" (3.90mm) width, while 14-SO measures 0.209" (5.30mm) width. PCB footprints are not interchangeable. Verify landing pattern compatibility before selecting 14-SO alternatives.

Q: Are automotive-qualified variants (SN74AHC04QDR) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed standard commercial specifications. They carry additional qualification testing and are fully backward compatible with non-automotive designs. No design changes are required.

Q: Why does SN74AHCU04D show faster propagation delay (7ns) than the original 74VHC04M (7.5ns)?

A: The 74AHCU series uses different internal circuit topology optimized for speed. However, this part is classified as Last Time Buy, indicating discontinued production. For new designs, SN74AHC04DR is the recommended substitute.

Q: What is the significance of the extended temperature range in SN74AHC04MDREP (-55°C to 125°C)?

A: Extended temperature range accommodates industrial, military, and extreme environment applications. The original 74VHC04M operates only to -40°C minimum. If your application requires operation below -40°C or above 85°C, SN74AHC04MDREP is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status. All maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Q: Can I mix different substitute part manufacturers in the same production run?

A: Electrically, yes. All substitutes maintain identical specifications within the allowed parameter ranges. However, manufacturing best practices typically recommend single-source qualification for production consistency. Verify with your quality assurance process before implementing multi-source procurement.

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