SN74LVC32AQPWREP Equivalent & Substitute Parts

Part Overview

The SN74LVC32AQPWREP is a 4-channel 2-input OR gate logic IC manufactured by Texas Instruments, housed in a 14-TSSOP surface mount package. This device operates across a 2V to 3.6V supply voltage range and is classified as an active product. Substitute parts are identified based on matching logic function, circuit count, input configuration, electrical performance parameters, and package compatibility. Alternative sources and packaging options are available for design flexibility and supply chain optimization.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ 3.3V, 50pF	3.8ns
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

Substitute parts for the SN74LVC32AQPWREP are classified based on the following substitution criteria:

Parametric Equivalents maintain identical electrical specifications including supply voltage range (2V ~ 3.6V), quiescent current (10 µA maximum), output drive capability (24mA), input logic levels (0.8V low, 2V high), and propagation delay (3.8ns @ 3.3V, 50pF). These parts differ only in packaging format or automotive qualification grade.

Manufacturer Recommended Alternatives provide functional equivalence with minor parameter variations within acceptable operating margins. These include parts with extended supply voltage ranges (1.2V ~ 3.6V), slightly higher quiescent current (40 µA), broader input logic level tolerances, or extended propagation delay (5ns or 5.5ns @ 3.3V, 50pF). Operating temperature ranges may be reduced to -40°C ~ 85°C for certain alternatives.

Cross-Manufacturer Options from onsemi and Toshiba Semiconductor maintain the 74LCX32 base product designation with compatible electrical performance and identical package footprint, enabling direct substitution in applications where supply chain diversification is required.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Quiescent Current (Max)	Propagation Delay @ 3.3V, 50pF	Operating Temperature	Package	Product Status	Packaging Format
SN74LVC32AQPWREP	Texas Instruments	2V ~ 3.6V	10 µA	3.8ns	-40°C ~ 125°C	14-TSSOP	Active	Tube
SN74LVC32AQPWRG4Q1	Texas Instruments	2V ~ 3.6V	10 µA	3.8ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel (TR)
SN74LVC32AQPWRQ1	Texas Instruments	2V ~ 3.6V	10 µA	3.8ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel (TR)
74LCX32MTCX	onsemi	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	Cut Tape (CT) & Digi-Reel®
74LVC32ADB,118	Nexperia USA Inc.	1.2V ~ 3.6V	40 µA	3.8ns	-40°C ~ 125°C	14-SSOP	Obsolete	Cut Tape (CT) & Digi-Reel®
74LVC32APW,112	Nexperia USA Inc.	1.2V ~ 3.6V	40 µA	5ns	-40°C ~ 125°C	14-TSSOP	Obsolete	Tube
74LVC32APW,118	Nexperia USA Inc.	1.2V ~ 3.6V	40 µA	5ns	-40°C ~ 125°C	14-TSSOP	Active	Tape & Reel (TR)
MC74LCX32DTG	onsemi	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Obsolete	Not specified
TC74LCX32FTELM	Toshiba Semiconductor and Storage	1.65V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	14-TSSOP	Active	Cut Tape (CT)

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred for Active Designs)

SN74LVC32AQPWRG4Q1 and SN74LVC32AQPWRQ1 are direct parametric equivalents with identical electrical specifications and operating temperature range. Both are active products from Texas Instruments. Selection between these and the original SN74LVC32AQPWREP depends on packaging format requirements: Tape & Reel (TR) format for automated assembly processes versus Tube format for manual handling or lower-volume applications.

Active Cross-Manufacturer Alternatives

74LVC32APW,118 (Nexperia USA Inc.) and 74LCX32MTCX (onsemi) are active products suitable for new designs. The Nexperia part maintains the extended supply voltage range (1.2V ~ 3.6V) and full operating temperature range (-40°C ~ 125°C) with slightly increased propagation delay (5ns). The onsemi part operates within the 2V ~ 3.6V range with reduced operating temperature range (-40°C ~ 85°C) and 5.5ns propagation delay. Both maintain 14-TSSOP package compatibility and ROHS3 compliance.

Obsolete Product Alternatives (Legacy Support Only)

74LVC32ADB,118, 74LVC32APW,112, and MC74LCX32DTG are classified as obsolete products. These should be considered only for legacy system maintenance or when existing inventory is available. The 14-SSOP package variant (74LVC32ADB,118) differs from the standard 14-TSSOP footprint and requires PCB layout verification before implementation.

Toshiba Cross-Manufacturer Option

TC74LCX32FTELM provides an active alternative from Toshiba Semiconductor with extended lower supply voltage limit (1.65V ~ 3.6V), reduced operating temperature range (-40°C ~ 85°C), and 5.5ns propagation delay. RoHS compliance is confirmed. This part is suitable for applications where supply chain diversification across multiple manufacturers is required.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC32AQPWRG4Q1 or SN74LVC32AQPWRQ1 be used as direct replacements for SN74LVC32AQPWREP?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating temperature range, and package footprint. The only difference is packaging format: Tape & Reel (TR) versus Tube. Verify your assembly process requirements before selection.

Q: What is the difference between 14-TSSOP and 14-SSOP packages?

A: Both are surface mount packages with 14 pins, but differ in physical dimensions. 14-TSSOP measures 0.173" width (4.40mm), while 14-SSOP measures 0.209" width (5.30mm). PCB layout and footprint compatibility must be verified before substituting between these package types.

Q: Can I use 74LVC32APW,118 in place of SN74LVC32AQPWREP?

A: Functional substitution is possible. Both are 4-channel 2-input OR gates in 14-TSSOP packages with identical output drive capability and propagation delay at 3.3V. However, 74LVC32APW,118 has extended lower supply voltage (1.2V minimum) and higher quiescent current (40 µA maximum). Verify your circuit's supply voltage and power consumption requirements.

Q: Why do some alternatives have different operating temperature ranges?

A: Operating temperature range is a design specification determined by the manufacturer. Parts with -40°C ~ 85°C range are suitable for commercial and industrial applications. Parts with -40°C ~ 125°C range provide extended high-temperature operation for automotive and harsh environment applications. Select based on your system's thermal requirements.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant or RoHS compliant, meeting environmental and hazardous substance restrictions. Verify specific compliance documentation for your regional requirements.

Q: What is the significance of "Active" versus "Obsolete" product status?

A: Active products are currently manufactured and supported by the supplier with ongoing availability. Obsolete products are no longer manufactured and should be used only for legacy system maintenance or when existing inventory is available. For new designs, select from active product alternatives.

Q: Can I substitute onsemi or Toshiba parts for Texas Instruments parts?

A: Yes, provided electrical specifications and package footprint are compatible. All listed cross-manufacturer alternatives maintain the same logic function, circuit count, input configuration, and 14-TSSOP package dimensions. Verify propagation delay and operating temperature range compatibility with your circuit design.

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