SN74HC04D Equivalent & Substitute Parts

Part Overview

The SN74HC04D is a 6-channel inverter logic IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and meet current compliance requirements such as RoHS3 certification.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	2V to 6V
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	-40°C to 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SN74HC04D is determined by the following criteria:

Primary Substitution Criteria:

Logic type: Inverter with 6 channels, 1 input per channel
Package compatibility: 14-SOIC or 14-SO surface mount
Voltage supply range: 2V to 6V minimum
Electrical characteristics: Output current (5.2mA high/low), propagation delay, input logic levels
Compliance: RoHS3 certification and MSL rating

Acceptable Variations:

Quiescent current: 1 µA to 20 µA (within logic IC standards)
Propagation delay: 12ns to 16ns at 6V, 50pF load
Operating temperature range: -40°C to 125°C (extended range acceptable)
Packaging format: Cut Tape, Digi-Reel, Tube, or Tape & Reel

Parts that deviate from these parameters or lack RoHS3 compliance are listed with technical notes for engineering review.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp	Package	RoHS Status
SN74HC04D	Texas Instruments	Discontinued	2V – 6V	2 µA	16ns	-40°C to 85°C	14-SOIC	ROHS3
SN74HC04DR	Texas Instruments	Active	2V – 6V	2 µA	16ns	-40°C to 85°C	14-SOIC	ROHS3
MC74HC04ADR2G	onsemi	Active	2V – 6V	1 µA	13ns	-55°C to 125°C	14-SOIC	ROHS3
MM74HC04MX	onsemi	Active	2V – 6V	2 µA	16ns	-40°C to 85°C	14-SOIC	ROHS3
CD74HC04M96	Texas Instruments	Active	2V – 6V	2 µA	14ns	-55°C to 125°C	14-SOIC	ROHS3
74HC04D,653	Nexperia USA Inc.	Active	2V – 6V	2 µA	14ns	-40°C to 125°C	14-SO	ROHS3
74HC04S14-13	Diodes Incorporated	Active	2V – 6V	20 µA	15ns	-40°C to 125°C	14-SO	ROHS3
74HCU04S14-13	Diodes Incorporated	Active	2V – 6V	20 µA	12ns	-40°C to 125°C	14-SO	ROHS3
MC74HC04ADG	onsemi	Active	2V – 6V	1 µA	13ns	-55°C to 125°C	14-SOIC	ROHS3
NLV74HC04ADR2G	onsemi	Obsolete	2V – 6V	1 µA	13ns	-55°C to 125°C	14-SOIC	ROHS3
CD74HC04M	Harris Corporation	Obsolete	2V – 6V	2 µA	14ns	-55°C to 125°C	14-SOIC	Non-compliant

Engineering Selection Recommendations

Recommended Direct Substitutes (Active Status, RoHS3 Compliant):

SN74HC04DR is the primary equivalent from Texas Instruments with identical electrical specifications and active product status. This part maintains full compatibility with the original SN74HC04D design.

MC74HC04ADR2G and MC74HC04ADG from onsemi provide improved performance characteristics with lower quiescent current (1 µA) and faster propagation delay (13ns). Extended operating temperature range (-55°C to 125°C) supports broader application requirements. Both parts are RoHS3 compliant and actively manufactured.

CD74HC04M96 from Texas Instruments offers extended temperature range (-55°C to 125°C) with improved propagation delay (14ns) and maintains RoHS3 compliance. Active product status ensures long-term availability.

MM74HC04MX from onsemi matches the original specifications exactly with identical quiescent current and propagation delay. Active status and RoHS3 compliance make this a direct functional replacement.

Alternative Substitutes (Active Status, Different Package or Series):

74HC04D,653 from Nexperia USA Inc. uses 14-SO packaging (functionally equivalent to 14-SOIC) with improved propagation delay (14ns) and extended temperature range. RoHS3 compliant and actively produced.

74HC04S14-13 from Diodes Incorporated operates within specification with higher quiescent current (20 µA) and 14-SO packaging. Suitable for applications where power consumption is not critical. RoHS3 compliant and active.

74HCU04S14-13 from Diodes Incorporated represents a different logic series (74HCU) with modified input logic levels (0.3V to 1.2V low, 1.7V to 4.8V high) and faster propagation delay (12ns). Use only when input threshold compatibility is verified. RoHS3 compliant and active.

Parts Not Recommended for New Designs:

NLV74HC04ADR2G (onsemi) is obsolete despite RoHS3 compliance. Automotive-grade qualification (AEC-Q100) limits general availability.

CD74HC04M (Harris Corporation) is obsolete and non-RoHS3 compliant. Not suitable for new designs or compliance-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can SN74HC04DR be used as a direct replacement for SN74HC04D?

A: Yes. SN74HC04DR is the active equivalent from Texas Instruments with identical electrical specifications, package type (14-SOIC), and RoHS3 compliance. The only difference is packaging format (Cut Tape & Digi-Reel vs. Tube).

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

A: Both are surface mount packages with identical pin pitch and footprint dimensions (0.154", 3.90mm width). They are mechanically and electrically interchangeable. The designation difference reflects manufacturer nomenclature variations.

Q: Are onsemi MC74HC04ADR2G and MC74HC04ADG interchangeable?

A: Both parts are functionally equivalent with identical electrical specifications. MC74HC04ADR2G uses Cut Tape & Digi-Reel packaging, while MC74HC04ADG uses Tube packaging. Select based on your procurement and assembly requirements.

Q: Why does 74HCU04S14-13 have different input logic levels?

A: The 74HCU series uses unbuffered CMOS logic with different input threshold specifications (0.3V to 1.2V low, 1.7V to 4.8V high) compared to standard 74HC (0.5V to 1.8V low, 1.5V to 4.2V high). Verify input signal compatibility before substitution.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other markets. All recommended substitutes are RoHS3 compliant. CD74HC04M (Harris Corporation) is non-compliant and should not be used in regulated applications.

Q: What is the impact of quiescent current differences between parts?

A: Quiescent current ranges from 1 µA (onsemi parts) to 20 µA (Diodes Incorporated parts). For battery-powered or low-power applications, select parts with lower quiescent current. For standard applications, this difference is negligible.

Q: Can I use NLV74HC04ADR2G as a substitute?

A: NLV74HC04ADR2G is obsolete and not recommended for new designs. Although RoHS3 compliant, its automotive-grade qualification (AEC-Q100) and obsolete status limit availability and support. Use active alternatives instead.

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