CD74HCT04M Equivalent & Substitute Parts

Part Overview

The CD74HCT04M is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The CD74HCT04M operates within the 74HCT logic family standard, providing basic digital inversion functionality across six independent channels with TTL-compatible input and output levels.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	4.5V ~ 5.5V
Input Logic Level Low	0.8V
Input Logic Level High	2V
Current Output High/Low	4mA / 4mA
Operating Temperature Range	-55°C ~ 125°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CD74HCT04M is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Logic type (Inverter)
Number of circuits (6 channels)
Number of inputs per circuit (1)
Supply voltage range (4.5V ~ 5.5V minimum)
Input logic levels (0.8V low, 2V high)
Package type (14-SOIC surface mount)
Output current capability (4mA minimum for both high and low states)

Secondary Considerations:

Propagation delay specifications (19ns nominal at specified conditions)
Quiescent current (2µA typical)
Operating temperature range (extended range preferred for -55°C to 125°C applications)
RoHS and regulatory compliance status

Parts meeting all primary criteria are direct functional equivalents. Variations in propagation delay, quiescent current, or temperature range do not affect basic substitutability but may impact performance in timing-critical or extreme-temperature applications.

Parameter Comparison

Part Number	Manufacturer	Status	Quiescent Current (Max)	Output Current High/Low	Propagation Delay @ Conditions	Operating Temp Range	Package	RoHS Compliant
CD74HCT04M	Texas Instruments	Discontinued	2 µA	4mA / 4mA	19ns @ 4.5V, 50pF	-55°C ~ 125°C	14-SOIC	Yes
CD74HCT04M96	Harris Corporation	Obsolete	2 µA	4mA / 4mA	19ns @ 4.5V, 50pF	-55°C ~ 125°C	14-SOIC	No
MC74HCT04ADR2G	onsemi	Active	1 µA	4mA / 4mA	17ns @ 5V, 50pF	-55°C ~ 125°C	14-SOIC	Yes
MM74HCT04M	Fairchild Semiconductor	Active	2 µA	4.8mA / 4.8mA	20ns @ 5V, 50pF	-40°C ~ 85°C	14-SOIC	Not specified
74HCT04D,653	Nexperia USA Inc.	Active	2 µA	4mA / 4mA	19ns @ 4.5V, 50pF	-40°C ~ 125°C	14-SO	Yes
74HCT04D-Q100,118	Nexperia USA Inc.	Active	2 µA	4mA / 4mA	19ns @ 4.5V, 50pF	-40°C ~ 125°C	14-SO	Yes
74HCT04S14-13	Diodes Incorporated	Active	20 µA	4mA / 5.2mA	22ns @ 4.5V, 50pF	-40°C ~ 125°C	14-SO	Yes
MC74HCT04ADG	onsemi	Active	1 µA	4mA / 4mA	17ns @ 5V, 50pF	-55°C ~ 125°C	14-SOIC	Yes
MM74HCT04MX	Fairchild Semiconductor	Active	2 µA	4.8mA / 4.8mA	20ns @ 5V, 50pF	-40°C ~ 85°C	14-SOIC	Not specified
SN74HCT04D	Texas Instruments	Discontinued	2 µA	4mA / 4mA	18ns @ 5.5V, 50pF	-40°C ~ 85°C	14-SOIC	Yes

Engineering Selection Recommendations

Preferred Active Substitutes (Highest Compatibility):

MC74HCT04ADR2G and MC74HCT04ADG (onsemi) are the primary recommended substitutes. Both parts are active, RoHS3 compliant, and maintain the full -55°C to 125°C operating temperature range of the original CD74HCT04M. The onsemi variants feature lower quiescent current (1µA) and faster propagation delay (17ns), providing performance advantages in power-sensitive and timing-critical applications.

Secondary Active Substitutes:

74HCT04D,653 and 74HCT04D-Q100,118 (Nexperia) are active alternatives with identical electrical specifications to the CD74HCT04M. The automotive-qualified variant (74HCT04D-Q100,118) carries AEC-Q100 certification for applications requiring automotive-grade components. Operating temperature range is -40°C to 125°C, suitable for most industrial applications but not extended low-temperature environments.

Alternative Substitutes with Parameter Variations:

MM74HCT04M and MM74HCT04MX (Fairchild Semiconductor) are active parts with higher output current capability (4.8mA) but limited to -40°C to 85°C operating range. These are suitable for standard industrial temperature applications where extended low-temperature operation is not required.

74HCT04S14-13 (Diodes Incorporated) is an active substitute with higher quiescent current (20µA) and slightly slower propagation delay (22ns). This part is suitable for non-timing-critical applications where power consumption is not a primary concern.

Avoid:

CD74HCT04M96 (Harris Corporation) is obsolete and non-RoHS compliant. SN74HCT04D (Texas Instruments) is discontinued at DiGi Electronics. Both should be avoided for new designs despite technical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use MC74HCT04ADR2G as a direct replacement for CD74HCT04M?

A: Yes. MC74HCT04ADR2G meets all primary substitution criteria: 6-channel inverter logic, 14-SOIC package, 4.5V to 5.5V supply range, identical input logic levels, and 4mA output current. It is active, RoHS3 compliant, and maintains the -55°C to 125°C temperature range. The lower quiescent current and faster propagation delay represent performance improvements.

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

A: Both designations refer to the same 14-pin surface mount outline with 0.154" (3.90mm) body width. The terms are used interchangeably by different manufacturers. Physical compatibility is identical for PCB assembly.

Q: Why do some substitutes have different operating temperature ranges?

A: Operating temperature range is determined by the manufacturer's qualification and testing. The CD74HCT04M is rated -55°C to 125°C (extended range). Some substitutes like MM74HCT04M are rated only -40°C to 85°C (industrial range). Selection depends on your application's temperature requirements.

Q: Is the Nexperia 74HCT04D-Q100,118 suitable for automotive applications?

A: Yes. The 74HCT04D-Q100,118 carries AEC-Q100 automotive qualification and is RoHS3 compliant. It is specifically designed for automotive-grade component requirements. Standard industrial variants (74HCT04D,653) lack this qualification.

Q: What does RoHS3 compliance mean for component selection?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. For new designs and regulated industries, RoHS3 compliance is mandatory. CD74HCT04M is RoHS3 compliant; ensure substitutes maintain this status for regulatory adherence.

Q: Can I substitute a part with higher output current (4.8mA vs 4mA)?

A: Yes. Higher output current capability is a performance advantage and does not create compatibility issues. The MM74HCT04M and MM74HCT04MX provide 4.8mA output, which is fully compatible with circuits designed for 4mA output.

Q: Why is quiescent current different across substitutes?

A: Quiescent current variation reflects different manufacturing processes and design optimizations by each manufacturer. Lower quiescent current (1µA in onsemi parts) reduces power consumption in standby conditions. This is a secondary parameter that does not affect functional substitutability.

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