74LVC32ADTR2G OR Gate IC Equivalent & Substitute Parts

Part Overview

The 74LVC32ADTR2G is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-TSSOP surface mount packaging. This part operates across a wide supply voltage range of 1.2V to 3.6V and is designed for general-purpose digital logic applications. The product is currently listed as obsolete, making identification of functional equivalents and active substitutes essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	1.2V ~ 3.6V
Current - Quiescent (Max)	40 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.12V ~ 0.8V
Input Logic Level - High	1.08V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	5ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC32ADTR2G is determined by the following critical parameters:

Logic Function: All substitutes must implement 4-channel 2-input OR gate logic
Package Type: All substitutes must use 14-TSSOP surface mount packaging with identical physical dimensions
Supply Voltage Range: Substitutes must support the required operating voltage window
Output Drive Capability: Current output specifications must meet or exceed 24mA for both high and low states
Propagation Delay: Maximum delay at 3.3V with 50pF load must not exceed 5ns
Operating Temperature Range: Substitutes must cover the full -40°C to 125°C range
Compliance: All substitutes must maintain ROHS3 compliance and MSL Level 1 rating

Substitutes are grouped into two categories: parametric equivalents (identical electrical specifications) and functional equivalents (compatible but with parameter variations).

Parameter Comparison

Parameter	74LVC32ADTR2G (onsemi)	MC74LCX32DTR2G (onsemi)	74LVC32APW,118 (Nexperia)	74LVC32APW-Q100J (Nexperia)	74LVC32APW/AUJ (NXP)
Manufacturer	onsemi	onsemi	Nexperia USA Inc.	Nexperia USA Inc.	NXP USA Inc.
Series	74LVC	74LCX	74LVC	74LVC	74LVC
Product Status	Obsolete	Active	Active	Active	Active
Logic Type	OR Gate	OR Gate	OR Gate	OR Gate	OR Gate
Number of Circuits	4	4	4	4	4
Number of Inputs	2	2	2	2	2
Voltage - Supply	1.2V ~ 3.6V	2V ~ 3.6V	1.2V ~ 3.6V	1.2V ~ 3.6V	1.2V ~ 3.6V
Current - Quiescent (Max)	40 µA	10 µA	40 µA	40 µA	40 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.12V ~ 0.8V	0.7V ~ 0.8V	0.12V ~ 0.8V	0.12V ~ 0.8V	0.12V ~ 0.8V
Input Logic Level - High	1.08V ~ 2V	1.7V ~ 2V	1.08V ~ 2V	1.08V ~ 2V	1.08V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	5ns	5.5ns	5ns	5ns	5ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade	Standard	Standard	Standard	Automotive (AEC-Q100)	Standard

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacements)

The 74LVC32APW,118, 74LVC32APW-Q100J, and 74LVC32APW/AUJ are parametric equivalents to the 74LVC32ADTR2G. These parts maintain identical electrical specifications including supply voltage range (1.2V ~ 3.6V), quiescent current (40 µA), output drive capability (24mA), input logic levels, propagation delay (5ns @ 3.3V, 50pF), and operating temperature range (-40°C ~ 125°C). All three are manufactured by Nexperia USA Inc. or NXP USA Inc. and are currently in active production status. These parts are suitable for direct substitution in applications where the original 74LVC32ADTR2G is specified.

The 74LVC32APW-Q100J variant includes automotive-grade qualification (AEC-Q100) and is appropriate for automotive applications requiring enhanced reliability and traceability.

Functional Equivalent (Limited Substitution)

The MC74LCX32DTR2G is a functional equivalent manufactured by onsemi in the 74LCX series. This part differs in the following parameters:

Supply voltage range is restricted to 2V ~ 3.6V (does not support 1.2V operation)
Quiescent current is reduced to 10 µA (lower power consumption)
Propagation delay is 5.5ns @ 3.3V, 50pF (0.5ns slower than the original)
Operating temperature range is limited to -40°C ~ 85°C (does not support 125°C operation)

The MC74LCX32DTR2G is suitable for substitution only in applications where the supply voltage remains above 2V, the maximum operating temperature does not exceed 85°C, and the additional 0.5ns propagation delay is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the MC74LCX32DTR2G replace the 74LVC32ADTR2G in all applications?

A: No. The MC74LCX32DTR2G has a restricted supply voltage range (2V ~ 3.6V) and operating temperature range (-40°C ~ 85°C). It is suitable only for applications that operate within these narrower specifications. If your design requires 1.2V supply operation or temperatures above 85°C, use one of the parametric equivalents instead.

Q: What is the difference between 74LVC32APW,118 and 74LVC32APW-Q100J?

A: Both parts are parametric equivalents with identical electrical specifications. The 74LVC32APW-Q100J includes automotive-grade qualification (AEC-Q100) and is intended for automotive applications. Select 74LVC32APW-Q100J if your application requires automotive-grade components; otherwise, either part is acceptable.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts listed use 14-TSSOP surface mount packaging with identical physical dimensions (0.173", 4.40mm Width). No PCB layout modifications are required for substitution.

Q: Why is the 74LVC32ADTR2G listed as obsolete?

A: The 74LVC32ADTR2G is obsolete but functionally equivalent parts remain in active production from multiple manufacturers. The parametric equivalents (74LVC32APW series from Nexperia/NXP) are recommended for new designs and ongoing procurement.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original 74LVC32ADTR2G.

Q: What is the propagation delay difference between the main part and MC74LCX32DTR2G?

A: The 74LVC32ADTR2G has a maximum propagation delay of 5ns at 3.3V with 50pF load, while the MC74LCX32DTR2G is specified at 5.5ns under the same conditions. This 0.5ns difference is acceptable in most general-purpose logic applications but should be evaluated in timing-critical designs.

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