MM74HCU04MX Equivalent & Substitute Parts

Part Overview

The MM74HCU04MX is a 6-channel inverter logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This device operates across a 2V to 6V supply voltage range and is designed for general-purpose digital logic inversion applications. The part is currently in active production status with 5388 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when specific packaging formats are required for manufacturing processes, or when alternative temperature operating ranges are needed for extended environmental applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	MM74HCU04MX
Manufacturer	onsemi
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	2V ~ 6V
Current Quiescent (Max)	2 µA
Current Output High/Low	5.2mA / 7.8mA
Max Propagation Delay	14ns @ 6V, 50pF
Operating Temperature	-40°C ~ 85°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MM74HCU04MX is determined by the following critical parameters:

Base product number: 74HCU04
Logic configuration: 6-channel inverter with single input per channel
Package footprint: 14-SOIC (0.154", 3.90mm Width)
Supply voltage compatibility: 2V ~ 6V
Surface mount technology
RoHS3 compliance and MSL 1 rating

Parts are grouped as direct substitutes when all electrical parameters fall within acceptable ranges for the application. Packaging format variations (Cut Tape, Tube, Tape & Reel, Bulk) do not affect electrical compatibility but determine suitability for specific manufacturing and procurement workflows. Operating temperature range extensions are acceptable substitutes when the application does not require the full -40°C to 85°C range of the primary part.

Parameter Comparison

Part Number	Manufacturer	Packaging	Quiescent Current (Max)	Output Current High/Low	Propagation Delay @ 6V, 50pF	Operating Temperature	Product Status	Inventory
MM74HCU04MX	onsemi	Cut Tape (CT)	2 µA	5.2mA / 7.8mA	14ns	-40°C ~ 85°C	Active	5388 Pcs
MC74HCU04ADG	onsemi	Tube	1 µA	5.2mA / 5.2mA	12ns	-55°C ~ 125°C	Active	2022 Pcs
MC74HCU04ADR2G	onsemi	Tape & Reel (TR)	1 µA	5.2mA / 5.2mA	12ns	-55°C ~ 125°C	Active	15300 Pcs
74HCU04S14-13	Diodes Incorporated	Tape & Reel (TR)	20 µA	5.2mA / 5.2mA	12ns	-40°C ~ 125°C	Active	5300 Pcs
SN74HCU04D	Texas Instruments	Tube	2 µA	5.2mA / 5.2mA	14ns	-40°C ~ 85°C	Last Time Buy	4445 Pcs
SN74HCU04DR	Texas Instruments	Tape & Reel (TR)	2 µA	5.2mA / 5.2mA	14ns	-40°C ~ 85°C	Active	4779 Pcs
SN74HCU04DT	Texas Instruments	Tape & Reel (TR)	2 µA	5.2mA / 5.2mA	14ns	-40°C ~ 85°C	Last Time Buy	1887 Pcs
CD74HCU04M	Texas Instruments	Tube	2 µA	5.2mA / 5.2mA	12ns	-55°C ~ 125°C	Last Time Buy	2200 Pcs
CD74HCU04M96	Texas Instruments	Tape & Reel (TR)	2 µA	5.2mA / 5.2mA	12ns	-55°C ~ 125°C	Active	6414 Pcs
74HCU04D,652	NXP Semiconductors	Bulk	—	—	—	—	Active	93476 Pcs
74HCU04D,653	NXP Semiconductors	Bulk	—	—	—	—	Active	152360 Pcs

Engineering Selection Recommendations

Selection of substitute parts for the MM74HCU04MX should prioritize active production status parts when possible. The onsemi MC74HCU04ADR2G and Texas Instruments SN74HCU04DR are both in active production with high inventory availability and meet all electrical parameter requirements. The MC74HCU04ADR2G offers improved quiescent current performance (1 µA versus 2 µA) and faster propagation delay (12ns versus 14ns), with extended operating temperature range (-55°C to 125°C).

For applications requiring the exact operating temperature range of the primary part (-40°C to 85°C), the SN74HCU04DR provides equivalent performance in Tape & Reel packaging. The Diodes Incorporated 74HCU04S14-13 is functionally compatible but exhibits higher quiescent current consumption (20 µA) and should be evaluated for power budget impact in battery-powered or low-power applications.

Parts marked as Last Time Buy status (SN74HCU04D, SN74HCU04DT, CD74HCU04M) remain available but represent end-of-life products from their respective manufacturers. These should be considered only when active alternatives are unavailable or when existing design validation has been completed against these specific part numbers.

NXP Semiconductors bulk packaging options (74HCU04D,652 and 74HCU04D,653) provide the highest inventory levels but lack detailed electrical parameter specifications in the provided data. These are suitable for high-volume procurement when detailed specifications can be cross-referenced with NXP datasheets.

All listed substitutes maintain RoHS3 compliance and MSL 1 rating, ensuring compatibility with standard surface mount assembly processes and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can I use MC74HCU04ADR2G as a direct replacement for MM74HCU04MX?

A: Yes. Both parts share the 74HCU04 base product number, 6-channel inverter configuration, and 14-SOIC package footprint. The MC74HCU04ADR2G operates within the 2V to 6V supply range and meets all functional requirements. The primary difference is packaging format (Tape & Reel versus Cut Tape) and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C).

Q: What is the difference between the onsemi and Texas Instruments versions?

A: Both manufacturers produce functionally equivalent 74HCU04 inverter ICs with identical pin configurations and 14-SOIC package dimensions. Differences exist in quiescent current specifications, propagation delay timing, and operating temperature ranges. The onsemi MC74HCU04ADR2G exhibits lower quiescent current (1 µA) and faster propagation delay (12ns) compared to the Texas Instruments SN74HCU04DR (2 µA, 14ns). Selection depends on application power budget and timing requirements.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT), Tube, and Tape & Reel (TR) packaging formats contain identical die and electrical characteristics. Packaging selection is determined by manufacturing process requirements and procurement workflow. Cut Tape is suitable for automated pick-and-place systems with tape feeders. Tube packaging is used for manual assembly or lower-volume production. Tape & Reel is standard for high-volume automated assembly lines.

Q: Why does the Diodes Incorporated part have higher quiescent current?

A: The 74HCU04S14-13 from Diodes Incorporated specifies a maximum quiescent current of 20 µA compared to 2 µA for the primary part. This represents a different manufacturing process or design variant within the 74HCU04 family. For applications sensitive to standby power consumption, this part should be evaluated against power budget requirements.

Q: Are Last Time Buy parts suitable for new designs?

A: Last Time Buy status indicates the manufacturer has discontinued or will discontinue production. Parts remain available from existing inventory but future availability is not guaranteed. These parts are suitable for sustaining production of existing designs or for applications where design validation has already been completed. New designs should prioritize active production status parts such as MC74HCU04ADR2G or SN74HCU04DR.

Q: What is the significance of the extended temperature range in CD74HCU04M96?

A: The CD74HCU04M96 operates from -55°C to 125°C compared to the primary part's -40°C to 85°C range. Extended temperature operation is necessary for industrial, automotive, or aerospace applications exposed to extreme environmental conditions. If the application operates within -40°C to 85°C, the extended range provides no functional benefit but may incur higher component cost.

Q: Can I substitute parts with different output current specifications?

A: Output current specifications (5.2mA/7.8mA for MM74HCU04MX versus 5.2mA/5.2mA for alternatives) indicate the maximum current the IC can source or sink at its outputs. Substitution is acceptable when the application load current does not exceed the substitute part's rated output current. Review circuit load requirements before selecting parts with lower output current ratings.

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