MM74HC04N Equivalent & Substitute Parts

Part Overview

The MM74HC04N is a 6-channel inverter logic IC manufactured by onsemi in a 14-MDIP through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The MM74HC04N operates across a 2V to 6V supply voltage range and is suitable for general-purpose logic inversion applications in digital circuits.

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	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	16ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
Series	74HC

Substitute Part Grouping Explanation

Substitution for the MM74HC04N is determined by the following core parameters:

Base product number (74HC04) ensures identical logic function and pin configuration
Supply voltage range (2V ~ 6V) must be maintained or exceeded
Output current specifications (5.2mA minimum for both high and low states)
Input logic level thresholds (0.5V ~ 1.8V for low, 1.5V ~ 4.2V for high)
Propagation delay performance (16ns maximum at 6V, 50pF load)
Operating temperature range compatibility

Substitute parts are grouped into two categories: direct package equivalents (through-hole 14-DIP variants) and surface-mount alternatives (14-SOIC). All substitutes maintain identical logic functionality and electrical specifications within the defined parameter ranges.

Parameter Comparison

Parameter	MM74HC04N (onsemi)	TC74HC04APF (Toshiba)	SN74HC04N (Texas Instruments)	CD74HC04E (Harris)	MC74HC04ADR2G (onsemi)
Logic Type	Inverter	Inverter	Inverter	Inverter	Inverter
Number of Circuits	6	6	6	6	6
Number of Inputs	1	1	1	1	1
Voltage - Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	1 µA	2 µA	2 µA	1 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	16ns	13ns	16ns	14ns	13ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Surface Mount
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete	Active	Active	Obsolete	Active

Engineering Selection Recommendations

For through-hole applications requiring direct pin-compatible replacement of the MM74HC04N, the TC74HC04APF (Toshiba) and SN74HC04N (Texas Instruments) are primary selections. Both parts are active products with identical 14-DIP packaging and meet all electrical specifications. The TC74HC04APF offers improved propagation delay performance (13ns versus 16ns) and lower quiescent current (1 µA versus 2 µA). The SN74HC04N maintains identical electrical characteristics to the MM74HC04N.

For surface-mount designs, the MC74HC04ADR2G (onsemi) in 14-SOIC packaging provides equivalent functionality with improved performance metrics. This part features lower quiescent current (1 µA) and faster propagation delay (13ns), with extended operating temperature range (-55°C ~ 125°C).

The CD74HC04E (Harris Corporation) is functionally equivalent but classified as obsolete and non-RoHS compliant, making it unsuitable for new designs requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the MM74HC04N be replaced with the MC74HC04ADR2G in existing through-hole designs?

A: No. The MC74HC04ADR2G uses 14-SOIC surface-mount packaging, which is incompatible with through-hole PCB layouts. The TC74HC04APF or SN74HC04N must be used for through-hole applications.

Q: What is the difference between the TC74HC04APF and SN74HC04N?

A: Both parts are pin-compatible 14-DIP through-hole packages with identical logic function. The TC74HC04APF offers superior propagation delay (13ns versus 16ns) and lower quiescent current (1 µA versus 2 µA). The SN74HC04N maintains the exact electrical specifications of the MM74HC04N.

Q: Are all substitute parts RoHS compliant?

A: The TC74HC04APF, SN74HC04N, and MC74HC04ADR2G are ROHS3 compliant. The CD74HC04E is not RoHS compliant and should not be used in new designs.

Q: Can the MM74HC04N operate at temperatures below -40°C?

A: No. The MM74HC04N operating temperature range is -40°C ~ 85°C. For extended low-temperature operation, the CD74HC04E or MC74HC04ADR2G support -55°C minimum, though CD74HC04E is obsolete.

Q: What is the significance of the 74HC base product number?

A: The 74HC designation indicates the logic family and function. All parts with the 74HC04 base number are 6-channel inverters with identical pin configurations and logic behavior, differing only in manufacturer, packaging, and performance characteristics.

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