SN74LVC1G32DBVRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC1G32DBVRG4 is a single-channel 2-input OR gate logic IC manufactured by Texas Instruments in SOT-23-5 surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74LVC1G32 series provides low-voltage CMOS logic functionality suitable for 1.65V to 5.5V supply applications with propagation delays of 4ns at 5V and 50pF load.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	1
Number of Inputs	2
Voltage Supply Range	1.65V ~ 5.5V
Current - Quiescent (Max)	10 µA
Current - Output High/Low	32mA / 32mA
Input Logic Level - Low	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V
Max Propagation Delay @ 5V, 50pF	4ns
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74LVC1G32DBVRG4 is determined by the following critical parameters:

Logic function: Single-channel 2-input OR gate
Supply voltage range: 1.65V ~ 5.5V minimum compatibility
Output drive capability: 32mA minimum for both high and low states
Propagation delay: 4ns maximum at 5V, 50pF load
Operating temperature range: -40°C ~ 125°C minimum
Surface mount packaging with compatible pinout
RoHS3 compliance and MSL Level 1 rating

Substitute parts are grouped into three categories based on packaging and electrical characteristics: parametric equivalents with identical SOT-23-5 packaging, direct substitutes with alternative small-outline packages (SOT-25, 5-TSSOP, SC-70-5, 5-SSOP), and manufacturer-recommended alternatives from different semiconductor suppliers.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage Supply	Quiescent Current (Max)	Propagation Delay @ 5V, 50pF	Operating Temp	Package	Product Status
SN74LVC1G32DBVRG4	Texas Instruments	1.65V ~ 5.5V	10 µA	4ns	-40°C ~ 125°C	SOT-23-5	Discontinued
SN74LVC1G32DBVR	Texas Instruments	1.65V ~ 5.5V	10 µA	4ns	-40°C ~ 125°C	SOT-23-5	Active
SN74LVC1G32DBVT	Texas Instruments	1.65V ~ 5.5V	10 µA	4ns	-40°C ~ 125°C	SOT-23-5	Active
74LVC1G32W5-7	Diodes Incorporated	1.65V ~ 5.5V	200 µA	1.7ns	-40°C ~ 125°C	SOT-25	Active
74LVC1G32GW,125	Nexperia USA Inc.	1.65V ~ 5.5V	4 µA	4ns	-40°C ~ 125°C	5-TSSOP	Active
NC7SZ32P5X	onsemi	1.65V ~ 5.5V	2 µA	4.5ns	-40°C ~ 85°C	SC-70-5	Active
TC7SZ32FU,LJ(CT	Toshiba Semiconductor and Storage	1.8V ~ 5.5V	2 µA	4.5ns	-40°C ~ 85°C	5-SSOP	Active
74LVC1G32GV,125	Nexperia USA Inc.	1.65V ~ 5.5V	4 µA	4ns	-40°C ~ 125°C	SC-74A	Active
74LVC1G32GV-Q100H	Nexperia USA Inc.	1.65V ~ 5.5V	4 µA	4ns	-40°C ~ 125°C	SC-74A	Active (AEC-Q100)

Engineering Selection Recommendations

For direct replacement of the discontinued SN74LVC1G32DBVRG4, the SN74LVC1G32DBVR and SN74LVC1G32DBVT from Texas Instruments are the primary choices, offering identical electrical specifications and SOT-23-5 packaging in active production status.

The 74LVC1G32GV,125 and 74LVC1G32GV-Q100H from Nexperia USA Inc. provide parametric equivalence with SC-74A packaging and active product status. The AEC-Q100 qualified variant (74LVC1G32GV-Q100H) is suitable for automotive applications requiring formal qualification.

The 74LVC1G32GW,125 from Nexperia in 5-TSSOP packaging and NC7SZ32P5X from onsemi in SC-70-5 packaging are functionally equivalent alternatives with lower quiescent current consumption (4 µA and 2 µA respectively) and active product status. These options are suitable where package footprint compatibility permits.

The TC7SZ32FU,LJ(CT from Toshiba Semiconductor and Storage offers equivalent functionality with the lowest quiescent current (2 µA) but operates at a minimum supply voltage of 1.8V and maximum operating temperature of 85°C, requiring verification against application requirements.

The 74LVC1G32W5-7 from Diodes Incorporated in SOT-25 packaging meets all electrical requirements with faster propagation delay (1.7ns) but exhibits higher quiescent current (200 µA), suitable for applications where speed is prioritized over power consumption.

All substitute parts maintain RoHS3 compliance and MSL Level 1 rating consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC1G32DBVR directly replace SN74LVC1G32DBVRG4?

A: Yes. The SN74LVC1G32DBVR is a parametric equivalent with identical electrical specifications, supply voltage range (1.65V ~ 5.5V), quiescent current (10 µA maximum), propagation delay (4ns at 5V, 50pF), operating temperature range (-40°C ~ 125°C), and SOT-23-5 packaging. The primary difference is product status: DBVR is active while DBVRG4 is discontinued.

Q: What is the difference between SOT-23-5 and SC-74A packaging?

A: Both are surface mount packages with five pins and compatible pinout for the 74LVC1G32 logic function. SOT-23-5 (also designated SOT-753) and SC-74A (also designated SOT-753) are equivalent package designations. The primary consideration is PCB footprint compatibility with your existing design.

Q: Can I use NC7SZ32P5X or TC7SZ32FU,LJ(CT as substitutes?

A: These parts are functionally equivalent OR gates with compatible supply voltage ranges and output drive capabilities. However, verify two parameters: NC7SZ32P5X operates to 85°C maximum (versus 125°C for the original), and TC7SZ32FU,LJ(CT requires minimum 1.8V supply (versus 1.65V for the original). Confirm your application does not exceed these limits.

Q: Why does 74LVC1G32W5-7 show 200 µA quiescent current?

A: The 74LVC1G32W5-7 from Diodes Incorporated exhibits higher quiescent current (200 µA) compared to the original part (10 µA). This represents a trade-off for faster propagation delay (1.7ns versus 4ns). Use this substitute only if your application requires the speed advantage and can accommodate the increased power consumption.

Q: Is 74LVC1G32GV-Q100H suitable for automotive applications?

A: Yes. The 74LVC1G32GV-Q100H carries AEC-Q100 qualification, meeting automotive industry standards. It maintains identical electrical specifications to the original part with active product status and SC-74A packaging.

Q: What are the key parameters I must verify when selecting a substitute?

A: Verify supply voltage range compatibility (minimum 1.65V for most substitutes, 1.8V for Toshiba variant), operating temperature range (minimum -40°C to 125°C for most, 85°C maximum for onsemi and Toshiba variants), output drive capability (32mA minimum for both high and low states), and package footprint compatibility with your PCB design.

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