74HCT04D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT04D,652 is a 6-channel inverter logic IC manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The 74HCT04 series provides basic logic inversion functionality across six independent channels, suitable for digital signal conditioning and logic level conversion in TTL-compatible systems.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	4mA, 4mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	19ns @ 4.5V, 50pF
Operating Temperature	-40°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 of the 74HCT04D,652 is determined by strict equivalence across the following critical parameters:

Logic Type: Inverter (6 channels, 1 input per channel)
Supply Voltage Range: 4.5V ~ 5.5V
Package: 14-SOIC form factor
Input/Output Logic Levels: 0.8V (low), 2V (high)
Propagation Delay: Maximum 19ns at specified conditions
Operating Temperature Range: Minimum -40°C to 125°C
Output Current Capability: 4mA minimum per channel

Substitute parts must maintain identical pinout, logic function, and electrical performance within these parameters. Packaging format (tube, tape & reel, bulk) does not affect functional equivalence but may impact procurement and assembly processes.

Parameter Comparison

Part Number	Manufacturer	Status	Supply Voltage	Quiescent Current (Max)	Output Current	Propagation Delay	Temp Range	RoHS Compliant	Package
74HCT04D,652	Nexperia USA Inc.	Obsolete	4.5V ~ 5.5V	2 µA	4mA, 4mA	19ns @ 4.5V	-40°C ~ 125°C	Yes (ROHS3)	14-SOIC
74HCT04D,653	Nexperia USA Inc.	Active	4.5V ~ 5.5V	2 µA	4mA, 4mA	19ns @ 4.5V	-40°C ~ 125°C	Yes (ROHS3)	14-SOIC
SN74HCT04DR	Texas Instruments	Active	4.5V ~ 5.5V	2 µA	4mA, 4mA	18ns @ 5.5V	-40°C ~ 85°C	Yes (ROHS3)	14-SOIC
SN74HCT04D	Texas Instruments	Discontinued	4.5V ~ 5.5V	2 µA	4mA, 4mA	18ns @ 5.5V	-40°C ~ 85°C	Yes (ROHS3)	14-SOIC
MC74HCT04ADR2G	onsemi	Active	4.5V ~ 5.5V	1 µA	4mA, 4mA	17ns @ 5V	-55°C ~ 125°C	Yes (ROHS3)	14-SOIC
MC74HCT04ADG	onsemi	Active	4.5V ~ 5.5V	1 µA	4mA, 4mA	17ns @ 5V	-55°C ~ 125°C	Yes (ROHS3)	14-SOIC
CD74HCT04MT	Texas Instruments	Discontinued	4.5V ~ 5.5V	2 µA	4mA, 4mA	19ns @ 4.5V	-55°C ~ 125°C	Yes (ROHS3)	14-SOIC
CD74HCT04M	Harris Corporation	Obsolete	4.5V ~ 5.5V	2 µA	4mA, 4mA	19ns @ 4.5V	-55°C ~ 125°C	No	14-SOIC
CD74HCT04M96	Harris Corporation	Obsolete	4.5V ~ 5.5V	2 µA	4mA, 4mA	19ns @ 4.5V	-55°C ~ 125°C	No	14-SOIC
MM74HCT04M	Fairchild Semiconductor	Active	4.5V ~ 5.5V	2 µA	4.8mA, 4.8mA	20ns @ 5V	-40°C ~ 85°C	Not specified	14-SOIC
MM74HCT04MX	Fairchild Semiconductor	Active	4.5V ~ 5.5V	2 µA	4.8mA, 4.8mA	20ns @ 5V	-40°C ~ 85°C	Not specified	14-SOIC

Engineering Selection Recommendations

Primary Recommendation: 74HCT04D,653

The 74HCT04D,653 from Nexperia USA Inc. is the direct functional equivalent with identical electrical specifications and active product status. This part maintains the same supply voltage range, quiescent current, output current, and propagation delay as the original 74HCT04D,652. ROHS3 compliance and unlimited moisture sensitivity rating match the original specification. This is the preferred substitute for direct replacement.

Secondary Recommendations: MC74HCT04ADR2G and MC74HCT04ADG (onsemi)

Both onsemi variants offer superior performance characteristics with lower quiescent current (1 µA vs. 2 µA) and faster propagation delay (17ns vs. 19ns). Extended operating temperature range (-55°C to 125°C) provides additional margin for demanding applications. Both parts maintain ROHS3 compliance and are currently in active production. The MC74HCT04ADR2G is supplied in tape & reel format, while MC74HCT04ADG is supplied in tube format.

Alternative Options: SN74HCT04DR (Texas Instruments)

The SN74HCT04DR from Texas Instruments is an active product with ROHS3 compliance. Propagation delay is 18ns at 5.5V, meeting the original specification. Operating temperature range is limited to -40°C to 85°C, which is narrower than the original part. This option is suitable for applications within the reduced temperature range.

Not Recommended: CD74HCT04M, CD74HCT04M96, SN74HCT04D

These parts are either obsolete or discontinued at DiGi Electronics. CD74HCT04M and CD74HCT04M96 lack ROHS3 compliance. While functionally equivalent, these options do not provide the same supply chain reliability or regulatory compliance as active alternatives.

Frequently Asked Questions (FAQ)

Q: Can I use MC74HCT04ADR2G as a direct replacement for 74HCT04D,652?

A: Yes. The MC74HCT04ADR2G is functionally equivalent with identical logic type, channel count, and package. It meets all electrical specifications of the original part. The lower quiescent current and faster propagation delay represent performance improvements. Verify that your application does not depend on the specific propagation delay of 19ns; the 17ns specification of the onsemi part is faster and compatible with all designs using the original part.

Q: What is the difference between 74HCT04D,652 and 74HCT04D,653?

A: Both parts are manufactured by Nexperia USA Inc. with identical electrical specifications. The primary difference is product status: 74HCT04D,652 is obsolete, while 74HCT04D,653 is active. The suffix ",653" indicates the tape & reel packaging variant. Functionally, they are equivalent and interchangeable.

Q: Are the Fairchild MM74HCT04M and MM74HCT04MX suitable substitutes?

A: These parts are functionally compatible with identical logic type and package. However, they have a narrower operating temperature range (-40°C to 85°C vs. -40°C to 125°C) and slightly higher output current (4.8mA vs. 4mA). RoHS compliance status is not specified. Use these parts only if your application operates within the reduced temperature range and does not require documented RoHS certification.

Q: Does packaging format (tube, tape & reel, bulk) affect compatibility?

A: Packaging format does not affect electrical or functional compatibility. It impacts procurement quantity, handling, and assembly automation. Tube packaging is suitable for manual assembly or small quantities. Tape & reel format is optimized for automated pick-and-place assembly. Bulk packaging is used for high-volume orders. Select based on your manufacturing process requirements, not functional performance.

Q: Can I use parts with extended temperature range (-55°C to 125°C) in place of the original (-40°C to 125°C)?

A: Yes. Extended temperature range represents a superset of the original specification. Parts rated for -55°C to 125°C are fully compatible with applications designed for -40°C to 125°C operation. This substitution introduces no risk and may provide additional design margin for extreme environment applications.

Q: Why do some substitutes show faster propagation delay than the original?

A: Propagation delay variation reflects manufacturing process differences between suppliers. Faster propagation delay (17ns or 18ns vs. 19ns) is a performance improvement that maintains backward compatibility. Digital logic designs typically do not depend on maximum propagation delay; they accommodate it. Faster parts do not create timing violations in circuits designed for the original specification.

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