CD74HCU04MT Equivalent & Substitute Parts

Part Overview

The CD74HCU04MT is a 6-channel inverter logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The CD74HCU04MT operates across a 2V to 6V supply voltage range with low quiescent current 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	0.3V ~ 1.1V
Input Logic Level - High	1.7V ~ 4.8V
Max Propagation Delay @ 6V, 50pF	12ns
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CD74HCU04MT are grouped based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Logic type: Inverter with 6 channels, 1 input per channel
Supply voltage range: 2V ~ 6V
Package type: 14-SOIC surface mount
Input/output logic levels and current specifications
Propagation delay characteristics
Operating temperature range compatibility
RoHS3 compliance and MSL rating

Substitutes are classified into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (functionally compatible with minor parameter variations within acceptable tolerances for the application).

Parameter Comparison

Part Number	Manufacturer	Product Status	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Packaging	Inventory
CD74HCU04MT	Texas Instruments	Obsolete	2 µA	12ns	-55°C ~ 125°C	14-SOIC	1096 Pcs
CD74HCU04M96	Texas Instruments	Active	2 µA	12ns	-55°C ~ 125°C	14-SOIC (TR)	6414 Pcs
74HCU04S14-13	Diodes Incorporated	Active	20 µA	12ns	-40°C ~ 125°C	14-SO (TR)	5300 Pcs
74HCU04D,653	NXP Semiconductors	Active	Not specified	Not specified	Not specified	Bulk	152360 Pcs
74HCU04D-Q100J	Nexperia USA Inc.	Active	2 µA	12ns	-40°C ~ 125°C	14-SO (TR)	3217 Pcs
MC74HCU04ADG	onsemi	Active	1 µA	12ns	-55°C ~ 125°C	14-SOIC (Tube)	2022 Pcs
MM74HC04M	onsemi	Active	2 µA	16ns	-40°C ~ 85°C	14-SOIC (Tube)	1133 Pcs
MM74HC04MX	onsemi	Active	2 µA	16ns	-40°C ~ 85°C	14-SOIC (CT)	17822 Pcs
MM74HCU04M	onsemi	Active	2 µA	14ns	-40°C ~ 85°C	14-SOIC (Tube)	1498 Pcs
MM74HCU04MX	Fairchild Semiconductor	Active	2 µA	14ns	-40°C ~ 85°C	14-SOIC	5388 Pcs

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): CD74HCU04M96 is the primary parametric equivalent, manufactured by Texas Instruments with identical electrical specifications and operating temperature range. This part maintains active product status and is available in higher inventory quantities.

Recommended Substitutes for Extended Temperature Range (-55°C to 125°C): MC74HCU04ADG (onsemi) provides full temperature range compatibility with the original CD74HCU04MT, featuring even lower quiescent current (1 µA) and identical propagation delay. This part is actively manufactured and RoHS3 compliant.

Recommended Substitutes for Standard Industrial Temperature Range (-40°C to 125°C): 74HCU04D-Q100J (Nexperia USA Inc.) offers automotive-grade qualification (AEC-Q100) with identical electrical performance and active product status. This option is suitable for applications requiring automotive-level reliability.

74HCU04S14-13 (Diodes Incorporated) provides functional compatibility with slightly elevated quiescent current (20 µA) and maintains the 12ns propagation delay specification. This part is actively produced with substantial inventory availability.

Substitutes for Standard Commercial Temperature Range (-40°C to 85°C): MM74HCU04M and MM74HCU04MX (onsemi) are suitable for applications with reduced temperature requirements, offering improved propagation delay performance (14ns) while maintaining all other critical parameters.

MM74HC04M and MM74HC04MX (onsemi) operate on the 74HC series with slightly relaxed input logic levels and extended propagation delay (16ns), appropriate for less timing-critical applications.

All recommended substitutes maintain RoHS3 compliance, MSL rating of 1, and 14-SOIC package compatibility with the original CD74HCU04MT.

Frequently Asked Questions (FAQ)

Q: Can CD74HCU04M96 be used as a direct replacement for CD74HCU04MT? A: Yes. CD74HCU04M96 is a parametric equivalent with identical electrical specifications, operating temperature range, and propagation delay. The primary difference is packaging format (Tape & Reel versus standard packaging) and active product status.

Q: What is the difference between 74HCU and 74HC series inverters? A: The 74HCU series features unbuffered outputs with tighter input logic level thresholds (0.3V ~ 1.1V low, 1.7V ~ 4.8V high), while the 74HC series has buffered outputs with relaxed thresholds (0.5V ~ 1.8V low, 1.5V ~ 4.2V high). The 74HCU series is preferred for applications requiring precise logic level detection.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and MSL rating of 1 (unlimited moisture sensitivity level), matching the original CD74HCU04MT specifications.

Q: Which substitute offers the best temperature range coverage? A: MC74HCU04ADG and CD74HCU04M96 both support the full -55°C to 125°C operating range. MC74HCU04ADG additionally features lower quiescent current (1 µA).

Q: Can I use MM74HC04M or MM74HC04MX if my application operates below -40°C? A: No. These parts are rated only to -40°C minimum. For applications requiring -55°C operation, use CD74HCU04M96, MC74HCU04ADG, or 74HCU04D-Q100J.

Q: What is the significance of the propagation delay difference between 12ns and 16ns? A: The 12ns delay (CD74HCU04MT, CD74HCU04M96, 74HCU04S14-13, 74HCU04D-Q100J) is suitable for timing-critical applications. The 16ns delay (MM74HC04M, MM74HC04MX) is acceptable for general-purpose logic applications where propagation delay is not a limiting factor.

Q: Are there packaging differences between substitute parts? A: Yes. All parts use 14-SOIC surface mount packages with identical physical dimensions (0.154", 3.90mm width). Differences exist in supply format: Tube, Tape & Reel (TR), Cut Tape (CT), or Bulk. These do not affect electrical compatibility or board-level performance.

Q: Is 74HCU04D,653 from NXP a suitable substitute? A: 74HCU04D,653 is functionally compatible but lacks complete parametric documentation in the provided specifications. Verify detailed electrical characteristics with NXP before selection for timing-critical applications.

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