74HC02N,652 NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC02N,652 is a 4-channel 2-input NOR Gate logic IC manufactured by NXP USA Inc. in 14-DIP through-hole packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74HC series represents a standard CMOS logic family widely used in digital circuit applications requiring NOR gate functionality across multiple channels.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V ~ 6V
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Through Hole
Package Type	14-DIP (0.300", 7.62mm)
Max Propagation Delay	15ns @ 6V, 50pF
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC02N,652 is determined by the following critical parameters:

Logic Function: All substitutes must implement 4-channel 2-input NOR gate functionality
Voltage Supply Range: Must support 2V ~ 6V operation
Package Compatibility: Through-hole 14-DIP packaging required for direct board-level replacement
Electrical Characteristics: Output current, propagation delay, and input logic levels must fall within acceptable tolerances
Pin Configuration: 14-pin DIP pinout must be identical

Substitutes are grouped into two categories: direct pin-compatible replacements (same package) and functional equivalents (different package requiring board redesign).

Parameter Comparison

Parameter	74HC02N,652 (NXP)	CD74HC02E (Harris)	74HC02D,653 (Nexperia)	SN74HC02N (TI)	TC74HC02APF (Toshiba)
Manufacturer	NXP USA Inc.	Harris Corporation	Nexperia USA Inc.	Texas Instruments	Toshiba Semiconductor
Logic Type	NOR Gate	NOR Gate	NOR Gate	NOR Gate	NOR Gate
Circuits / Inputs	4 / 2	4 / 2	4 / 2	4 / 2	4 / 2
Voltage Supply	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Quiescent Current (Max)	2 µA	2 µA	2 µA	2 µA	1 µA
Output Current High/Low	5.2mA / 5.2mA	5.2mA / 5.2mA	5.2mA / 5.2mA	5.2mA / 5.2mA	5.2mA / 5.2mA
Max Propagation Delay	15ns @ 6V, 50pF	15ns @ 6V, 50pF	15ns @ 6V, 50pF	15ns @ 6V, 50pF	13ns @ 6V, 50pF
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole	Surface Mount	Through Hole	Through Hole
Package	14-DIP	14-PDIP	14-SOIC	14-PDIP	14-DIP
Product Status	Obsolete	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Pin-Compatible Replacements (Through-Hole 14-DIP):

SN74HC02N (Texas Instruments): Active product status with ROHS3 compliance. Identical electrical characteristics and 14-PDIP package footprint. Operating temperature range limited to -40°C ~ 85°C versus the original -40°C ~ 125°C specification.
TC74HC02APF (Toshiba Semiconductor): Active product status with ROHS3 compliance. Superior propagation delay performance (13ns vs. 15ns) and lower quiescent current (1 µA vs. 2 µA). Operating temperature range -40°C ~ 85°C. Recommended for new designs requiring improved performance metrics.

Functional Equivalent (Surface Mount):

74HC02D,653 (Nexperia): Active product status with ROHS3 compliance and highest inventory availability. 14-SOIC surface-mount package requires PCB redesign. Identical electrical specifications to the original part. Suitable for new board layouts or retrofit applications with surface-mount capability.

Obsolete Alternative (Not Recommended for New Designs):

CD74HC02E (Harris Corporation): Obsolete product status with RoHS non-compliance. Identical electrical characteristics but extended operating temperature range (-55°C ~ 125°C). Not suitable for RoHS-regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC02N as a direct replacement for 74HC02N,652 in existing designs?

A: Yes, SN74HC02N is pin-compatible with identical 14-PDIP through-hole packaging and matching electrical specifications. The operating temperature range is narrower (-40°C ~ 85°C vs. -40°C ~ 125°C), so verify your application does not require operation above 85°C.

Q: What is the difference between 14-DIP and 14-PDIP packaging?

A: Both designations refer to 14-pin dual-in-line through-hole packages with 0.300" (7.62mm) spacing. The packages are mechanically and electrically compatible for board-level substitution.

Q: Why is 74HC02D,653 listed as a substitute if it uses surface-mount packaging?

A: 74HC02D,653 is a functional equivalent with identical logic operation and electrical performance. It requires PCB redesign due to 14-SOIC surface-mount packaging but is the recommended choice for new designs due to active product status and superior availability.

Q: Is TC74HC02APF better than the original 74HC02N,652?

A: TC74HC02APF offers improved performance with faster propagation delay (13ns vs. 15ns) and lower quiescent current (1 µA vs. 2 µA). Both are through-hole compatible. The trade-off is a narrower operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C).

Q: Can I use CD74HC02E in new designs?

A: CD74HC02E is not recommended for new designs. It is obsolete and RoHS non-compliant. Use active alternatives such as SN74HC02N, TC74HC02APF, or 74HC02D,653 instead.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by logic function (4-channel 2-input NOR gate), voltage supply range (2V ~ 6V), output current capability (5.2mA), propagation delay performance, and package compatibility. All listed substitutes meet these criteria within their specified operating ranges.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message