74F32SJ OR Gate IC Equivalent & Substitute Parts

Part Overview

The 74F32SJ is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-SOP surface mount packaging. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74F32 series maintains consistent functional and electrical characteristics across manufacturers, enabling direct substitution based on matching electrical parameters and package compatibility.

Key Parameters

Parameter	Specification
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	1mA, 20mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	5.6ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Base Product Number	74F32
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74F32SJ is determined by strict equivalence across the following parameters:

Logic function: 4-channel 2-input OR gate
Electrical characteristics: 4.5V ~ 5.5V supply voltage, 1mA/20mA output current, matching input logic levels and propagation delay
Operating temperature range: 0°C ~ 70°C
Surface mount technology with 14-pin configuration
Base product series: 74F32

The substitute parts listed below maintain identical electrical performance and functional specifications. Variations in packaging format (Tape & Reel vs. Tube) and package case dimensions do not affect electrical compatibility but may impact assembly and handling procedures.

Parameter Comparison

Parameter	74F32SJ (onsemi)	SN74F32NSR (TI)	SN74F32D (TI)	SN74F32DR (TI)
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	OR Gate	OR Gate	OR Gate	OR Gate
Number of Circuits	4	4	4	4
Number of Inputs	2	2	2	2
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Output High, Low	1mA, 20mA	1mA, 20mA	1mA, 20mA	1mA, 20mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V
Max Propagation Delay @ V, Max CL	5.6ns @ 5V, 50pF	5.6ns @ 5V, -	5.6ns @ 5V, -	5.6ns @ 5V, -
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Last Time Buy	Active
Packaging	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: SN74F32DR (Texas Instruments)

The SN74F32DR is the preferred substitute for the obsolete 74F32SJ. This part maintains active product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Tape & Reel packaging supports automated assembly processes. Current inventory availability is 9453 units.

Secondary Recommendation: SN74F32NSR (Texas Instruments)

The SN74F32NSR provides an alternative with active product status and ROHS3 compliance. Tape & Reel packaging is suitable for high-volume production. Inventory availability is 3100 units.

Tertiary Option: SN74F32D (Texas Instruments)

The SN74F32D is available in Tube packaging with Last Time Buy status, indicating limited future availability. This option is suitable only for applications where Tube packaging meets assembly requirements and immediate procurement is feasible. Inventory availability is 2392 units.

All three substitute parts satisfy the electrical and functional requirements of the 74F32SJ without design modification.

Frequently Asked Questions (FAQ)

Q: Can the SN74F32DR directly replace the 74F32SJ without circuit modification?

A: Yes. The SN74F32DR maintains identical electrical specifications, logic function, and operating parameters. No circuit redesign is required.

Q: What is the difference between the packaging options?

A: SN74F32DR and SN74F32NSR are supplied in Tape & Reel format, optimized for automated pick-and-place assembly. SN74F32D is supplied in Tube packaging, suitable for manual assembly or lower-volume applications. All three have identical electrical performance.

Q: Why is the 74F32SJ classified as obsolete?

A: The 74F32SJ has reached end-of-life status with the manufacturer. Active alternatives from Texas Instruments ensure continued design support and component availability.

Q: Are there any compliance differences between the substitute parts?

A: All substitute parts are ROHS3 compliant with identical REACH and ECCN classifications. Moisture sensitivity levels are equivalent across all options.

Q: Which substitute should be selected for new production designs?

A: SN74F32DR is recommended for new designs due to active product status and standard Tape & Reel packaging for automated assembly.

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