SN74HC02NE4 Equivalent & Substitute Parts

Part Overview

The SN74HC02NE4 is a NOR Gate IC manufactured by Texas Instruments, featuring 4 channels with 2 inputs per channel in a 14-PDIP package. This logic component operates across a 2V to 6V supply voltage range and is designed for Through Hole mounting applications. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to support inventory management, supply chain continuity, and design flexibility while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
Series	74HC
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SN74HC02NE4 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution criteria are:

Primary Equivalence Parameters:

Logic Type: NOR Gate (4 channels, 2 inputs per channel)
Voltage Supply Range: 2V ~ 6V
Current Specifications: Quiescent 2 µA maximum; Output 5.2mA high and low
Input Logic Levels: Low 0.5V ~ 1.8V; High 1.5V ~ 4.2V
Propagation Delay: 15ns @ 6V, 50pF
Operating Temperature: -40°C ~ 85°C
Package Type: 14-DIP Through Hole
Series: 74HC
Compliance: RoHS3 Compliant, REACH Unaffected

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Packaging designation (tube) and product status (Active) further confirm interchangeability.

Parameter Comparison

Parameter	SN74HC02NE4	SN74HC02N
Manufacturer	Texas Instruments	Texas Instruments
Logic Type	NOR Gate	NOR Gate
Number of Circuits	4	4
Number of Inputs	2	2
Voltage - Supply	2V ~ 6V	2V ~ 6V
Current - Quiescent (Max)	2 µA	2 µA
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	15ns	15ns
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)
Series	74HC	74HC
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The SN74HC02N serves as a direct parametric equivalent to the SN74HC02NE4. Both components are manufactured by Texas Instruments, maintain Active product status, and carry identical electrical specifications and mechanical packaging. Selection between these parts is determined by:

Compliance and Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

Supply Chain Considerations: Component selection may be based on inventory availability, lead time, and supplier stock levels. The SN74HC02N currently maintains 1245 pieces in stock compared to 1040 pieces for the SN74HC02NE4.

Packaging Designation: Both parts are supplied in tube packaging and are suitable for automated assembly processes. The 14-DIP Through Hole package remains consistent across both part numbers.

Functional Interchangeability: No design modifications are required when substituting between these parts. Pin configuration, electrical performance, and thermal characteristics are identical.

Frequently Asked Questions (FAQ)

Q: Can SN74HC02N be used as a direct replacement for SN74HC02NE4?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating ranges, and 14-DIP package dimensions. No circuit modifications are required.

Q: What are the key differences between SN74HC02NE4 and SN74HC02N?

A: There are no electrical or mechanical differences. Both parts are manufactured by Texas Instruments and meet the same 74HC series specifications. The designation difference reflects supplier device package coding.

Q: Are both parts RoHS compliant?

A: Yes. Both SN74HC02NE4 and SN74HC02N are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards.

Q: What is the operating temperature range for these NOR Gate ICs?

A: Both parts operate across -40°C to 85°C, suitable for industrial and commercial temperature environments.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts feature identical 14-DIP Through Hole packaging with 0.300" (7.62mm) spacing. No PCB layout modifications are necessary.

Q: What is the maximum propagation delay for the SN74HC02 series?

A: Maximum propagation delay is 15 nanoseconds at 6V supply voltage with 50pF load capacitance for both part numbers.

Q: What supply voltage range is supported?

A: Both parts operate across 2V to 6V, providing flexibility for various logic system voltage requirements.

Q: How many NOR gate circuits are integrated in each package?

A: Each package contains 4 independent NOR gate circuits, each with 2 inputs, providing 4 channels of logic gating functionality.

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