CD74HCU04M Equivalent & Substitute Parts

Part Overview

The CD74HCU04M is a 6-channel inverter logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is classified as Last Time Buy, indicating discontinued production with limited availability. The CD74HCU04M operates across a 2V to 6V supply voltage range and is ROHS3 compliant with unlimited moisture sensitivity rating. Alternative equivalent parts are necessary due to product status and inventory constraints, with multiple manufacturers offering functionally compatible substitutes that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.1V
Input Logic Level - High	1.7V ~ 4.8V
Max Propagation Delay @ 6V, 50pF	12ns
Operating Temperature	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HCU04M is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic Type: Inverter (6-channel, 1-input configuration)
Number of Circuits: 6
Number of Inputs: 1
Voltage Supply Range: 2V ~ 6V minimum
Package / Case: 14-SOIC form factor
Mounting Type: Surface Mount

Electrical Compatibility Criteria:

Output current capability: 5.2mA minimum for both high and low states
Propagation delay: 12ns or faster at 6V, 50pF load
Input logic levels must accommodate standard TTL/CMOS thresholds
Quiescent current: 2 µA or lower preferred for low-power applications

Compliance & Certification:

RoHS3 compliance required
MSL rating of 1 (Unlimited) preferred
REACH unaffected status

Substitute parts are grouped into two categories: direct equivalents from the 74HCU series (ultra-low power variants) and compatible alternatives from the 74HC series (standard CMOS variants). The 74HCU series maintains tighter input logic level specifications and lower quiescent current, while 74HC variants offer broader operating temperature ranges and higher quiescent current tolerance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Voltage - Supply	Current - Quiescent (Max)	Input Logic Level - Low	Input Logic Level - High	Max Propagation Delay @ 6V, 50pF	Operating Temperature	Packaging	Product Status
CD74HCU04M	Texas Instruments	74HCU	2V ~ 6V	2 µA	0.3V ~ 1.1V	1.7V ~ 4.8V	12ns	-55°C ~ 125°C	Tube	Last Time Buy
CD74HCU04M96	Texas Instruments	74HCU	2V ~ 6V	2 µA	0.3V ~ 1.1V	1.7V ~ 4.8V	12ns	-55°C ~ 125°C	Tape & Reel (TR)	Active
74HC04S14-13	Diodes Incorporated	74HC	2V ~ 6V	20 µA	0.5V ~ 1.8V	1.5V ~ 4.2V	15ns	-40°C ~ 125°C	Tape & Reel (TR)	Active
74HCU04D,653	NXP Semiconductors	74HCU	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Bulk	Active
74HCU04D-Q100J	Nexperia USA Inc.	74HCU	2V ~ 6V	2 µA	0.3V ~ 1.2V	1.7V ~ 4.8V	12ns	-40°C ~ 125°C	Tape & Reel (TR)	Active
74HCU04S14-13	Diodes Incorporated	74HCU	2V ~ 6V	20 µA	0.3V ~ 1.2V	1.7V ~ 4.8V	12ns	-40°C ~ 125°C	Tape & Reel (TR)	Active
MC74HCU04ADR2G	onsemi	74HCU	2V ~ 6V	1 µA	0.3V ~ 1.1V	1.7V ~ 4.8V	12ns	-55°C ~ 125°C	Tape & Reel (TR)	Active
MM74HC04M	onsemi	74HC	2V ~ 6V	2 µA	0.5V ~ 1.8V	1.5V ~ 4.2V	16ns	-40°C ~ 85°C	Tube	Active
MM74HC04MX	onsemi	74HC	2V ~ 6V	2 µA	0.5V ~ 1.8V	1.5V ~ 4.2V	16ns	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	Active
MM74HCU04M	onsemi	74HCU	2V ~ 6V	2 µA	0.3V ~ 1.1V	1.7V ~ 4.8V	14ns	-40°C ~ 85°C	Tube	Active
MM74HCU04MX	Fairchild Semiconductor	74HCU	2V ~ 6V	2 µA	0.3V ~ 1.1V	1.7V ~ 4.8V	14ns	-40°C ~ 85°C	Not specified	Active

Engineering Selection Recommendations

Primary Substitutes (74HCU Series - Recommended):

CD74HCU04M96 is the direct equivalent from Texas Instruments with identical electrical specifications and Active product status. This part maintains the same 12ns propagation delay, 2 µA quiescent current, and -55°C to 125°C operating range as the original. The only difference is packaging format (Tape & Reel vs. Tube), which does not affect electrical performance.

MC74HCU04ADR2G from onsemi provides superior performance with 1 µA quiescent current (50% lower than the original) while maintaining all other electrical parameters. This part is Active with full ROHS3 compliance and unlimited MSL rating, making it suitable for applications requiring extended temperature operation (-55°C to 125°C).

74HCU04D-Q100J from Nexperia USA Inc. is qualified to AEC-Q100 automotive standards and maintains electrical equivalence with the original part. This variant is appropriate for automotive and high-reliability applications requiring formal qualification documentation.

74HCU04S14-13 from Diodes Incorporated maintains 12ns propagation delay and 74HCU series specifications with slightly relaxed input logic level thresholds (0.3V ~ 1.2V low, 1.7V ~ 4.8V high). Operating temperature range is -40°C to 125°C, which is acceptable for most industrial applications.

Secondary Substitutes (74HC Series - Alternative):

74HC04S14-13 from Diodes Incorporated and MM74HC04M/MM74HC04MX from onsemi are 74HC series variants with higher quiescent current (20 µA and 2 µA respectively) and slightly slower propagation delay (15ns and 16ns). These parts are suitable for applications where the extended input logic level thresholds (0.5V ~ 1.8V low, 1.5V ~ 4.2V high) are acceptable and lower operating temperature range (-40°C to 85°C) meets requirements.

Selection Criteria by Application:

For direct replacement with no design changes, select CD74HCU04M96 or MC74HCU04ADR2G. For automotive applications, select 74HCU04D-Q100J. For cost-optimized designs where lower operating temperature is acceptable, select MM74HC04M or MM74HC04MX. All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) rating.

Frequently Asked Questions (FAQ)

Q: Can I use a 74HC04 series part as a direct replacement for the CD74HCU04M?

A: 74HC series parts are functionally compatible but with electrical differences. The 74HC variants have higher quiescent current (20 µA vs. 2 µA), broader input logic level thresholds, and slightly slower propagation delay (15-16ns vs. 12ns). They are suitable for applications where these differences do not impact performance, but 74HCU series parts are preferred for direct replacement.

Q: What is the difference between CD74HCU04M and CD74HCU04M96?

A: These parts are electrically identical with the same specifications, performance, and operating range. The difference is packaging format: CD74HCU04M is supplied in Tube packaging, while CD74HCU04M96 is supplied in Tape & Reel (TR) format. Both are ROHS3 compliant and Active products.

Q: Is the MC74HCU04ADR2G a suitable replacement?

A: Yes. MC74HCU04ADR2G is a superior substitute with 1 µA quiescent current (lower power consumption), identical propagation delay (12ns), and extended operating temperature range (-55°C to 125°C). It maintains all input/output logic level specifications and is fully ROHS3 compliant.

Q: Can I use MM74HCU04M instead of the original CD74HCU04M?

A: MM74HCU04M is electrically compatible with slightly faster propagation delay (14ns vs. 12ns) and identical quiescent current (2 µA). However, the operating temperature range is narrower (-40°C to 85°C vs. -55°C to 125°C). This part is suitable if your application does not require the extended low-temperature operation below -40°C.

Q: What does "Last Time Buy" status mean for the CD74HCU04M?

A: Last Time Buy indicates the manufacturer has discontinued production and will not accept new orders after a specified date. Existing inventory is limited. Substitution to Active products (such as CD74HCU04M96, MC74HCU04ADR2G, or 74HCU04D-Q100J) is necessary for long-term design continuity and supply chain reliability.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended 74HCU series substitutes are ROHS3 compliant. The 74HC series variants (74HC04S14-13, MM74HC04M, MM74HC04MX) are also ROHS3 compliant. Verify compliance documentation for specific procurement requirements.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All recommended substitutes maintain this rating, eliminating moisture sensitivity concerns in standard manufacturing environments.

Q: Can I mix different substitute parts in the same design?

A: Yes, all recommended 74HCU series substitutes are pin-compatible and functionally equivalent. However, maintain consistency within a single PCB assembly to simplify procurement, testing, and field service documentation.

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