74AC08SJ AND Gate IC Equivalent & Substitute Parts

Part Overview

The 74AC08SJ is a 4-channel 2-input AND gate logic IC manufactured by onsemi in a 14-SOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74AC08 series represents a standard logic gate function across multiple manufacturers, with several active alternatives available that maintain functional compatibility within specified electrical parameters.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V ~ 6V
Current Output (High/Low)	24mA / 24mA
Max Propagation Delay	7.5ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	14-SOIC
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74AC08SJ is determined by the following critical parameters:

Logic Function: All substitutes must implement 4-channel 2-input AND gate logic
Circuit Count & Input Configuration: 4 circuits with 2 inputs per circuit
Voltage Supply Range: Operating range must encompass or match 2V ~ 6V
Output Current Capability: Minimum 24mA for both high and low states
Propagation Delay: Maximum 7.5ns @ 5V, 50pF load
Operating Temperature Range: Minimum -40°C ~ 85°C coverage
Package Compatibility: 14-SOIC surface mount package with matching pin configuration
Moisture Sensitivity: MSL 1 rating

Substitute parts are grouped into two categories: direct equivalents (identical electrical specifications) and similar parts (compatible within allowed parameter ranges).

Parameter Comparison

Parameter	74AC08SJ (Main)	SN74AC08NSR	CD74AC08M96	SN74AC08D	SN74AC08DR	SN74AC08QDRG4Q1
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Discontinued at DiGi Electronics	Active	Active
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	4	4	4	4	4	4
Number of Inputs	2	2	2	2	2	2
Voltage Supply Range	2V ~ 6V	2V ~ 6V	1.5V ~ 5.5V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 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	0.9V ~ 1.65V	0.9V ~ 1.65V	0.3V ~ 1.65V	0.9V ~ 1.65V	0.9V ~ 1.65V	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V	2.1V ~ 3.85V	1.2V ~ 3.85V	2.1V ~ 3.85V	2.1V ~ 3.85V	2.1V ~ 3.85V
Max Propagation Delay @ 5V, 50pF	7.5ns	7.5ns	8.7ns	7.5ns	7.5ns	7.5ns
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C
Package / Case	14-SOIC (0.209", 5.30mm)	14-SOIC (0.209", 5.30mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade	Commercial	Commercial	Commercial	Commercial	Commercial	Automotive (AEC-Q100)

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical Specifications)

SN74AC08NSR, SN74AC08D, and SN74AC08DR are direct functional equivalents to the 74AC08SJ, maintaining identical electrical parameters including voltage supply range, propagation delay, and operating temperature limits. All three are manufactured by Texas Instruments and comply with ROHS3 standards. SN74AC08NSR and SN74AC08DR are currently active products with established supply chains. SN74AC08D is discontinued at DiGi Electronics but remains available through alternative channels.

Compatible Substitute with Extended Specifications

CD74AC08M96 operates within compatible electrical parameters with extended operating temperature range (-55°C ~ 125°C) and wider voltage supply range (1.5V ~ 5.5V). Propagation delay is 8.7ns, which exceeds the 7.5ns specification of the main part. This part is suitable for applications where extended temperature operation is beneficial and the additional propagation delay is acceptable.

Automotive-Grade Alternative

SN74AC08QDRG4Q1 is an AEC-Q100 qualified automotive-grade variant with identical electrical specifications to the main part and extended operating temperature range (-40°C ~ 125°C). This part is appropriate for automotive and high-reliability applications requiring automotive qualification.

Package Consideration

The 74AC08SJ uses a 14-SOIC package with 0.209" (5.30mm) width. Most substitute parts use the narrower 0.154" (3.90mm) SOIC variant. While both are 14-pin SOIC packages with identical pin configurations, PCB layout and footprint compatibility must be verified before substitution.

Frequently Asked Questions (FAQ)

Q: Can SN74AC08NSR directly replace 74AC08SJ without design changes?

A: SN74AC08NSR is electrically equivalent to 74AC08SJ with identical voltage supply, propagation delay, and operating temperature specifications. However, the package width differs (0.209" vs. 0.209" for NSR). Verify PCB footprint compatibility before implementation.

Q: What is the difference between CD74AC08M96 and the other substitutes?

A: CD74AC08M96 has a wider voltage supply range (1.5V ~ 5.5V) and extended operating temperature (-55°C ~ 125°C). Its propagation delay is 8.7ns compared to 7.5ns for direct equivalents. This part is suitable when extended temperature operation is required and the additional delay is acceptable for the application.

Q: Is SN74AC08QDRG4Q1 suitable for non-automotive applications?

A: SN74AC08QDRG4Q1 is an automotive-grade part with AEC-Q100 qualification. It can be used in non-automotive applications where its specifications meet design requirements. Its extended temperature range (-40°C ~ 125°C) and automotive qualification may introduce unnecessary cost for standard commercial applications.

Q: Why is SN74AC08D listed as discontinued?

A: SN74AC08D is discontinued at DiGi Electronics but remains available through alternative distributors. For new designs, SN74AC08NSR or SN74AC08DR are recommended as active products with established long-term availability.

Q: Are all substitutes ROHS3 compliant?

A: All Texas Instruments substitutes listed are ROHS3 compliant. The original 74AC08SJ RoHS status is not specified in available documentation.

Q: What packaging options are available for these substitutes?

A: SN74AC08NSR is supplied in Tape & Reel (TR) packaging. CD74AC08M96 is available in Cut Tape (CT) & Digi-Reel. SN74AC08D packaging is not specified. SN74AC08DR is supplied in Cut Tape (CT) & Digi-Reel. SN74AC08QDRG4Q1 is supplied in Tape & Reel (TR).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message