74VHC02MTC NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74VHC02MTC is a 4-channel 2-input NOR gate logic IC manufactured by onsemi in 14-TSSOP surface mount packaging. This part is classified as obsolete, making substitute parts necessary for new designs and production continuity. The 74VHC02 series provides standard logic gating functionality across industrial and commercial applications with supply voltage range of 2V to 5.5V and operating temperature range of -40°C to 85°C.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	8mA, 8mA
Input Logic Level - Low	0.5V
Input Logic Level - High	1.5V
Max Propagation Delay @ 5V, 50pF	7.5ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74VHC02MTC is determined by the following critical parameters:

Logic function: 4-channel 2-input NOR gate
Supply voltage compatibility: 2V ~ 5.5V
Package type: 14-TSSOP surface mount
Propagation delay: 7.5ns maximum at 5V, 50pF load
Output drive capability: 8mA high and low
Operating temperature range: minimum -40°C to 85°C

Substitute parts are grouped into three categories based on product status and electrical characteristics:

Direct Substitutes (74VHC Series): Parts maintaining identical 74VHC base product number with same electrical specifications and packaging.

Cross-Manufacturer Substitutes (74AHC Series): Texas Instruments and Nexperia parts with compatible logic function, packaging, and electrical performance. The 74AHC series operates at extended temperature range (-40°C to 125°C) and offers broader input logic level tolerances.

Automotive-Grade Alternatives: AEC-Q100 qualified variants for applications requiring automotive qualification and extended temperature performance.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Supply Voltage	Quiescent Current	Propagation Delay @ 5V	Operating Temp	Package	RoHS Status
74VHC02MTC	onsemi	74VHC	Obsolete	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 85°C	14-TSSOP	Not specified
74VHC02MTCX	onsemi	74VHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 85°C	14-TSSOP	ROHS3 Compliant
SN74AHC02PWR	Texas Instruments	74AHC	Active	2V ~ 5.5V	2 µA	8.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
SN74AHC02PW	Texas Instruments	74AHC	Discontinued at DiGi Electronics	2V ~ 5.5V	2 µA	8.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
SN74AHC02QPWRQ1	Texas Instruments	74AHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
SN74AHC02QPWRG4Q1	Texas Instruments	74AHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
SN74AHC02MPWREP	Texas Instruments	74AHC	Active	2V ~ 5.5V	2 µA	7.5ns	-55°C ~ 125°C	14-TSSOP	ROHS3 Compliant
74AHC02PW,118	NXP Semiconductors	74AHC	Active	2V ~ 5.5V	2 µA	Not specified	Not specified	14-TSSOP	Not specified
74AHC02PW-Q100J	Nexperia USA Inc.	74AHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
74VHC02PW,118	Nexperia USA Inc.	74VHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant
74VHC02PW-Q100J	Nexperia USA Inc.	74VHC	Active	2V ~ 5.5V	2 µA	7.5ns	-40°C ~ 125°C	14-TSSOP	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: 74VHC02MTCX (onsemi) is the direct replacement for 74VHC02MTC. Both parts maintain identical electrical specifications, 14-TSSOP packaging, and supply voltage range. The MTCX variant is active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Cross-Manufacturer Alternatives: SN74AHC02QPWRQ1 and SN74AHC02QPWRG4Q1 (Texas Instruments) provide equivalent logic function with AEC-Q100 automotive qualification. These parts match the 7.5ns propagation delay specification and extend operating temperature to 125°C. Both are active in production with ROHS3 compliance.

Extended Temperature Range: SN74AHC02MPWREP (Texas Instruments) extends the lower operating temperature to -55°C while maintaining 7.5ns propagation delay and 125°C upper limit. This variant is suitable for applications requiring wider temperature performance.

Automotive Applications: 74AHC02PW-Q100J (Nexperia) and 74VHC02PW-Q100J (Nexperia) are AEC-Q100 qualified alternatives with automotive-grade certification. Both maintain 7.5ns propagation delay and extended temperature range to 125°C.

Availability Consideration: SN74AHC02PWR (Texas Instruments) is active in production with 5800 pieces in stock, offering high availability for immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can I use 74AHC02 series parts as direct replacements for 74VHC02MTC?

A: Yes. The 74AHC02 series maintains identical logic function (4-channel 2-input NOR gate), supply voltage range (2V ~ 5.5V), output drive capability (8mA), and 14-TSSOP packaging. The 74AHC series extends operating temperature to 125°C compared to the original 85°C maximum. Propagation delay is 8.5ns for standard 74AHC02 variants and 7.5ns for qualified automotive grades, both within acceptable logic timing margins.

Q: What is the difference between 74VHC and 74AHC series?

A: Both series provide identical NOR gate logic function and packaging. The 74VHC series operates to 85°C maximum, while 74AHC series extends to 125°C. Input logic level thresholds are tighter on 74AHC (0.5V ~ 1.65V low, 1.5V ~ 3.85V high) compared to 74VHC (0.5V low, 1.5V high). Both series maintain 2V ~ 5.5V supply voltage compatibility.

Q: Are automotive-qualified variants (AEC-Q100) compatible with industrial applications?

A: Yes. AEC-Q100 qualified parts (SN74AHC02QPWRQ1, SN74AHC02QPWRG4Q1, 74AHC02PW-Q100J, 74VHC02PW-Q100J) meet automotive reliability standards and are fully compatible with industrial applications. These variants provide enhanced reliability margins and extended temperature performance.

Q: What packaging options are available?

A: All substitute parts use 14-TSSOP (0.173", 4.40mm width) surface mount packaging, identical to the original 74VHC02MTC. Packaging variations include Cut Tape (CT) & Digi-Reel, Tube, and Tape & Reel (TR) formats for different procurement and assembly requirements.

Q: Which substitute offers the best propagation delay performance?

A: Multiple parts match the original 7.5ns propagation delay specification: 74VHC02MTCX, SN74AHC02QPWRQ1, SN74AHC02QPWRG4Q1, SN74AHC02MPWREP, 74AHC02PW-Q100J, 74VHC02PW,118, and 74VHC02PW-Q100J. Standard 74AHC02 variants (SN74AHC02PW, SN74AHC02PWR) specify 8.5ns propagation delay, which remains within typical logic circuit timing budgets.

Q: Is RoHS compliance required for my application?

A: All active substitute parts are ROHS3 compliant. The original 74VHC02MTC does not specify RoHS status. If RoHS compliance is required, select from the active production variants with documented ROHS3 compliance status.

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