74ACTQ04SJ Equivalent & Substitute Parts

Part Overview

The 74ACTQ04SJ is a 6-channel inverter logic IC manufactured by onsemi in a 14-SOP surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The 74ACTQ04SJ operates within the 4.5V to 5.5V supply voltage range and is suitable for applications requiring standard TTL-compatible logic inversion with moderate propagation delays.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.209", 5.30mm Width)

Substitute Part Grouping Explanation

Substitution for the 74ACTQ04SJ is determined by the following criteria:

Logic Function: All substitute parts must be 6-channel inverters with single input configuration
Electrical Specifications: Supply voltage range (4.5V ~ 5.5V), output current (24mA), and input logic levels must match or exceed the main part specifications
Package Compatibility: Surface mount packages in 14-pin SOIC or SOP configurations are acceptable
Operating Temperature Range: Substitutes must support at minimum -40°C to 85°C operation

The substitute parts listed below meet these criteria across multiple manufacturers, providing design flexibility while maintaining functional and electrical equivalence.

Parameter Comparison

Parameter	74ACTQ04SJ	MC74ACT04DR2G	CD74ACT04M96	SN74ACT04D	SN74ACT04DR	SN74ACT04NSR
Manufacturer	onsemi	onsemi	Harris Corporation	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	Inverter	Inverter	Inverter	Inverter	Inverter	Inverter
Number of Circuits	6	6	6	6	6	6
Number of Inputs	1	1	1	1	1	1
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA	4 µA	4 µA	2 µA	2 µA	2 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V	2V	2V
Max Propagation Delay @ 5V, 50pF	7.5ns	8.5ns	9.3ns	8.5ns	8.5ns	8.5ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.209", 5.30mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.209", 5.30mm Width)
Product Status	Obsolete	Active	Obsolete	Discontinued at DiGi Electronics	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compliance)

SN74ACT04DR and SN74ACT04NSR from Texas Instruments are the preferred substitutes. Both parts are currently active in production, ROHS3 compliant, and maintain identical electrical specifications to the 74ACTQ04SJ. SN74ACT04NSR offers the same 14-SOIC (0.209", 5.30mm Width) package as the original part, ensuring direct mechanical compatibility. SN74ACT04DR uses a narrower 14-SOIC (0.154", 3.90mm Width) package, requiring PCB layout verification for pin-to-pin spacing.

Secondary Substitute (Active Status, Narrower Package)

MC74ACT04DR2G from onsemi is an active production part with ROHS3 compliance. This part features a 4 µA maximum quiescent current compared to the 2 µA specification of the main part, and uses the narrower 14-SOIC (0.154", 3.90mm Width) package. PCB layout compatibility must be confirmed before selection.

Obsolete Alternatives (Not Recommended for New Designs)

CD74ACT04M96 from Harris Corporation is obsolete and RoHS non-compliant. SN74ACT04D from Texas Instruments is discontinued at DiGi Electronics. These parts should not be selected for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ACT04DR as a direct replacement for 74ACTQ04SJ?

A: SN74ACT04DR is electrically equivalent and functionally compatible. However, it uses a narrower 14-SOIC (0.154", 3.90mm Width) package compared to the original 14-SOIC (0.209", 5.30mm Width). PCB layout verification is required to confirm pin spacing compatibility with existing footprints.

Q: What is the difference between SN74ACT04NSR and SN74ACT04DR?

A: Both parts are electrically identical and from the same manufacturer. The primary difference is packaging: SN74ACT04NSR uses the wider 14-SOIC (0.209", 5.30mm Width) package matching the original part, while SN74ACT04DR uses the narrower 14-SOIC (0.154", 3.90mm Width) package. SN74ACT04NSR is supplied in Tape & Reel format; SN74ACT04DR is supplied in Cut Tape & Digi-Reel format.

Q: Why is MC74ACT04DR2G listed as a substitute if it has higher quiescent current?

A: MC74ACT04DR2G maintains all critical electrical specifications including supply voltage range, output current, input logic levels, and propagation delay. The 4 µA quiescent current specification is within acceptable tolerance for most applications and does not affect functional compatibility. This part is currently in active production with ROHS3 compliance.

Q: Can I use CD74ACT04M96 in a new design?

A: CD74ACT04M96 is obsolete and RoHS non-compliant. It should not be selected for new designs or applications requiring long-term component availability and regulatory compliance.

Q: What is the significance of the propagation delay differences shown in the comparison table?

A: All substitute parts maintain propagation delays within 7.5ns to 9.3ns at 5V with 50pF load. These variations are within typical design margins for standard logic applications. The 74ACTQ04SJ specification of 7.5ns is the fastest; however, the slightly longer delays of substitute parts do not affect functional compatibility in most applications.

Q: Are all substitute parts ROHS3 compliant?

A: Four of the five substitute parts are ROHS3 compliant: MC74ACT04DR2G, SN74ACT04D, SN74ACT04DR, and SN74ACT04NSR. CD74ACT04M96 is RoHS non-compliant and should not be used in applications requiring regulatory compliance.

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