SN74LVC2G32DCURE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G32DCURE4 is a 2-channel OR gate logic IC manufactured by Texas Instruments, housed in an 8-VSSOP surface mount package. This component operates across a supply voltage range of 1.65V to 5.5V and is designed for low-power digital logic applications. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Logic Type	OR Gate
Number of Circuits	2
Number of Inputs	2
Voltage - Supply	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	3.2ns
Operating Temperature	-40°C ~ 125°C
Package / Case	8-VFSOP (0.091", 2.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SN74LVC2G32DCURE4 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Logic Type: OR Gate (2 channels, 2 inputs per channel)
Voltage Supply Range: 1.65V ~ 5.5V
Package Type: 8-VFSOP surface mount
Output Current Capability: 32mA minimum (both high and low)
Operating Temperature Range: -40°C ~ 125°C
RoHS3 Compliance and MSL Level 1

Acceptable Variations:

Quiescent current may vary (10 µA, 4 µA, or 1 µA are all acceptable)
Propagation delay up to 3.7ns @ 5V, 50pF is acceptable
Packaging format (Cut Tape, Digi-Reel, or Tape & Reel) does not affect functional equivalence
Manufacturer differences are acceptable provided all electrical parameters align

Parameter Comparison

Parameter	SN74LVC2G32DCURE4 (Main)	SN74LVC2G32DCUR	SN74LVC2G32DCUT	NL27WZ32USG	74LVC2G32DC,125	74LVC2G32DC-Q100H
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	onsemi	Nexperia USA Inc.	Nexperia USA Inc.
Logic Type	OR Gate	OR Gate	OR Gate	OR Gate	OR Gate	OR Gate
Number of Circuits	2	2	2	2	2	2
Number of Inputs	2	2	2	2	2	2
Voltage - Supply	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V	1.65V ~ 5.5V
Current - Quiescent (Max)	10 µA	10 µA	10 µA	1 µA	4 µA	4 µA
Current - Output High, Low	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA	32mA, 32mA
Input Logic Level - Low	0.7V ~ 0.8V	0.7V ~ 0.8V	0.7V ~ 0.8V	Not specified	0.7V ~ 0.8V	0.7V ~ 0.8V
Input Logic Level - High	1.7V ~ 2V	1.7V ~ 2V	1.7V ~ 2V	Not specified	1.7V ~ 2V	1.7V ~ 2V
Max Propagation Delay @ 5V, 50pF	3.2ns	3.2ns	3.2ns	3.7ns	3.2ns	3.2ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)	8-VFSOP (0.091", 2.30mm Width)
Product Status	Discontinued	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SN74LVC2G32DCUR (MFR Recommended Substitute) This Texas Instruments part is the primary recommended substitute. It maintains identical electrical specifications to the original SN74LVC2G32DCURE4 and carries Active product status with 3598 units in stock. The packaging format (Cut Tape & Digi-Reel) differs only in delivery method and does not affect functional performance.

SN74LVC2G32DCUT (Parametric Equivalent) Also manufactured by Texas Instruments with Active status, this variant offers identical electrical performance with 2455 units available. The Cut Tape packaging format is suitable for automated assembly processes.

NL27WZ32USG (Direct Manufacturer Alternative) The onsemi NL27WZ32USG provides functional equivalence with superior quiescent current performance (1 µA vs. 10 µA). However, the operating temperature range is limited to -40°C ~ 85°C, making it unsuitable for applications requiring the full -40°C ~ 125°C range. Propagation delay is marginally higher at 3.7ns. This part is suitable only for applications within the reduced temperature specification. Inventory availability is high at 21880 units.

74LVC2G32DC,125 (Parametric Equivalent) Manufactured by Nexperia USA Inc., this part maintains full electrical equivalence with reduced quiescent current (4 µA). Active product status with 6167 units in stock. Tape & Reel packaging is standard for high-volume production.

74LVC2G32DC-Q100H (Automotive Grade Equivalent) This Nexperia part includes AEC-Q100 automotive qualification and maintains identical electrical specifications. Operating temperature range is -40°C ~ 125°C. This variant is required for automotive applications. Inventory: 11685 units.

Frequently Asked Questions (FAQ)

Q: Can I use NL27WZ32USG as a direct replacement for SN74LVC2G32DCURE4? A: NL27WZ32USG is functionally equivalent only for applications operating within -40°C ~ 85°C. If your application requires operation up to 125°C, this substitute is not suitable. For standard temperature range applications, it is compatible.

Q: What is the difference between the Texas Instruments and Nexperia versions? A: Both manufacturers produce 74LVC2G32 logic gates with identical core electrical specifications. The primary differences are quiescent current (Texas Instruments: 10 µA; Nexperia: 4 µA) and product availability. Both are ROHS3 compliant and MSL Level 1.

Q: Does packaging format affect compatibility? A: No. Cut Tape (CT), Digi-Reel, and Tape & Reel (TR) packaging formats are delivery methods only. The die and electrical performance are identical. Selection should be based on your assembly process requirements.

Q: Is the 74LVC2G32DC-Q100H suitable for non-automotive applications? A: Yes. The AEC-Q100 qualification is an additional certification that does not restrict use in non-automotive applications. It is a superset of standard specifications and is fully compatible with any application requiring the base 74LVC2G32 functionality.

Q: What is the significance of the quiescent current differences? A: Quiescent current (1 µA, 4 µA, or 10 µA) represents standby power consumption. Lower quiescent current is beneficial for battery-powered or low-power applications. All variants meet the 1.65V ~ 5.5V supply specification and are functionally interchangeable from a logic perspective.

Q: Can I mix different manufacturers in the same design? A: Yes. All listed substitutes meet identical functional and electrical requirements. Mixing manufacturers is acceptable provided each part meets your specific application requirements (temperature range, quiescent current, automotive qualification if needed).

Q: Why is the original SN74LVC2G32DCURE4 discontinued? A: Component discontinuation is a normal lifecycle event. The SN74LVC2G32DCUR and SN74LVC2G32DCUT variants remain in active production from Texas Instruments and provide identical functionality, making transition straightforward.

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