74HC02PW,112 NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC02PW,112 is a 4-channel 2-input NOR gate logic IC manufactured by Nexperia USA Inc. in 14-TSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The 74HC02 series maintains consistent functional performance across multiple manufacturers, enabling direct substitution based on electrical and mechanical parameter alignment.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V ~ 6V
Package Type	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C ~ 125°C
Max Propagation Delay	15ns @ 6V, 50pF
Current Output High/Low	5.2mA / 5.2mA
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC02PW,112 is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic Type: NOR Gate (4 channels, 2 inputs per channel)
Voltage Supply Range: 2V ~ 6V minimum
Package: 14-TSSOP form factor
Mounting: Surface Mount

Performance Compatibility Criteria:

Max Propagation Delay: 15ns or faster @ 6V, 50pF
Output Current: 5.2mA minimum (High and Low)
Input Logic Levels: Compatible with 0.5V ~ 1.8V (Low) and 1.5V ~ 4.2V (High)
Operating Temperature: -40°C ~ 125°C or wider range

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level 1

Parts meeting all functional and electrical parameters are classified as direct substitutes. Parts with superior performance characteristics (lower quiescent current, faster propagation delay, extended temperature range) or automotive qualification are listed as compatible alternatives.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Status	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp Range	Packaging	Inventory
74HC02PW,112	Nexperia USA Inc.	Obsolete	2 µA	15ns	-40°C ~ 125°C	Tube	872 Pcs
MC74HC02ADTR2G	onsemi	Active	1 µA	13ns	-55°C ~ 125°C	Cut Tape & Digi-Reel	50200 Pcs
SN74HC02QPWREP	Texas Instruments	Active	2 µA	15ns	-40°C ~ 125°C	Tape & Reel	1086 Pcs
SN74HC02QPWRG4Q1	Texas Instruments	Active	2 µA	15ns	-40°C ~ 125°C	Tape & Reel	2847 Pcs
SN74HC02QPWRQ1	Texas Instruments	Active	2 µA	15ns	-40°C ~ 125°C	Tape & Reel	2433 Pcs
MM74HC02MTC	Fairchild Semiconductor	Active	2 µA	15ns	-40°C ~ 85°C	Bulk	25450 Pcs
MM74HC02MTCX	onsemi	Active	2 µA	15ns	-40°C ~ 85°C	Tape & Reel	3250 Pcs
NLV74HC02ADTR2G	onsemi	Obsolete	1 µA	13ns	-55°C ~ 125°C	Tape & Reel	3332 Pcs
SN74HC02APWR	Texas Instruments	Active	2 µA	13ns	-40°C ~ 85°C	Tape & Reel	2200 Pcs
SN74HC02PW	Texas Instruments	Discontinued at DiGi Electronics	2 µA	15ns	-40°C ~ 85°C	Tube	14338 Pcs
SN74HC02PWR	Texas Instruments	Active	2 µA	15ns	-40°C ~ 85°C	Cut Tape & Digi-Reel	22300 Pcs

Engineering Selection Recommendations

Primary Substitutes (Identical Electrical Performance):

SN74HC02QPWREP, SN74HC02QPWRG4Q1, and SN74HC02QPWRQ1 from Texas Instruments provide direct electrical equivalence with the 74HC02PW,112. All three maintain 2 µA quiescent current, 15ns propagation delay, and -40°C ~ 125°C operating range. SN74HC02QPWRG4Q1 and SN74HC02QPWRQ1 include AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

Enhanced Performance Alternatives:

MC74HC02ADTR2G and NLV74HC02ADTR2G from onsemi offer superior electrical characteristics: 1 µA quiescent current (50% reduction) and 13ns propagation delay (2ns improvement). Both support extended temperature range (-55°C ~ 125°C). NLV74HC02ADTR2G includes AEC-Q100 qualification. These parts are suitable for power-sensitive or high-speed applications.

Active Status Advantage:

All recommended substitutes except NLV74HC02ADTR2G maintain active product status, ensuring long-term availability and supply chain stability. SN74HC02PWR and SN74HC02APWR from Texas Instruments provide high inventory levels (22300 and 2200 Pcs respectively) with active status.

Compliance Alignment:

All substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1, matching the original part's environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC02QPWRG4Q1 or SN74HC02QPWRQ1 as direct replacements for 74HC02PW,112?

A: Yes. Both parts are electrically and mechanically equivalent. They maintain identical voltage supply range (2V ~ 6V), quiescent current (2 µA), propagation delay (15ns), and operating temperature range (-40°C ~ 125°C). The primary difference is AEC-Q100 automotive qualification, which adds value for automotive applications without affecting standard industrial use.

Q: What is the advantage of MC74HC02ADTR2G over the original part?

A: MC74HC02ADTR2G reduces quiescent current from 2 µA to 1 µA and improves propagation delay from 15ns to 13ns. It also extends the operating temperature range to -55°C ~ 125°C. These improvements benefit power-constrained and high-speed applications while maintaining full functional compatibility.

Q: Are there packaging differences between substitute parts?

A: Yes. The original 74HC02PW,112 uses Tube packaging. Substitutes are available in Cut Tape & Digi-Reel (MC74HC02ADTR2G, SN74HC02PWR), Tape & Reel (SN74HC02QPWREP, SN74HC02QPWRG4Q1, SN74HC02QPWRQ1, MM74HC02MTCX, NLV74HC02ADTR2G, SN74HC02APWR), and Bulk (MM74HC02MTC) formats. All maintain the same 14-TSSOP form factor and surface mount compatibility.

Q: Which substitute offers the best long-term availability?

A: SN74HC02PWR from Texas Instruments combines active product status with the highest inventory level (22300 Pcs) and standard industrial temperature range (-40°C ~ 85°C). MC74HC02ADTR2G from onsemi also provides excellent availability (50200 Pcs) with enhanced performance characteristics.

Q: Can I substitute parts with different operating temperature ranges?

A: Yes, if your application operates within the substitute part's temperature range. For example, MM74HC02MTC and MM74HC02MTCX support -40°C ~ 85°C, which is suitable for standard industrial applications but not for extended-range requirements. Verify your application's temperature requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are RoHS3 compliant and maintain Moisture Sensitivity Level 1, matching the original part's environmental compliance profile.

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