SN74LVC2T45DCUTE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2T45DCUTE4 is a bidirectional voltage level translator manufactured by Texas Instruments, designed for logic signal conversion between different voltage domains. This device features 1 circuit with 2 channels, supporting data rates up to 420 Mbps with tri-state, non-inverted output configuration. The part is discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74LVC2T45DCUTE4
Manufacturer	Texas Instruments
Series	74LVC
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1.65 V ~ 5.5 V
Voltage - VCCB	1.65 V ~ 5.5 V
Output Type	Tri-State, Non-Inverted
Data Rate	420 Mbps
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-VFSOP (0.091", 2.30mm Width)
Supplier Device Package	8-VSSOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution for the SN74LVC2T45DCUTE4 is determined by the following critical parameters:

Translator Type: Voltage Level (bidirectional capability required)
Channel Configuration: 1 circuit, 2 channels per circuit
Voltage Ranges: VCCA and VCCB operating ranges
Output Configuration: Tri-State, Non-Inverted output
Data Rate: 420 Mbps minimum
Package: 8-VSSOP form factor
Mounting: Surface Mount

Substitute parts are grouped into two categories:

Parametric Equivalents (Texas Instruments 74LVC series): Parts with identical electrical specifications and packaging, differing only in supplier packaging format (Cut Tape vs. Tape & Reel).

Manufacturer Recommended Substitutes (Nexperia 74LVC/74LVCH series): Parts meeting or exceeding the electrical specifications of the original part, with extended operating temperature ranges and automotive-grade qualifications available.

Parameter Comparison

Parameter	SN74LVC2T45DCUTE4	SN74LVC2T45DCURG4	SN74LVC2T45DCUT	74LVC2T45DC,125	74LVC2T45DC-Q100H	74LVCH2T45DC,125	74LVCH2T45DC-Q100H
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Series	74LVC	74LVC	74LVC	74LVC	74AVC	74LVCH	74LVCH
Translator Type	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level
Channel Type	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional
Channels per Circuit	2	2	2	2	2	2	2
Voltage - VCCA	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V
Voltage - VCCB	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V
Output Type	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted
Data Rate	420 Mbps	420 Mbps	420 Mbps	420 Mbps	420 Mbps	420 Mbps	420 Mbps
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	8-VFSOP	8-VFSOP	8-VFSOP	8-VFSOP	8-VFSOP	8-VFSOP	8-VFSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued	Discontinued	Active	Active	Active	Active	Active
Automotive Grade	No	No	No	No	Yes (AEC-Q100)	No	Yes (AEC-Q100)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

SN74LVC2T45DCUT is the primary direct replacement, offering identical electrical specifications and package form factor with active product status. This part maintains the original -40°C to 85°C operating temperature range and 1.65 V minimum VCCA/VCCB voltage specification.

For Extended Temperature Range Applications

The Nexperia 74LVC2T45DC,125 and 74LVCH2T45DC,125 parts extend the operating temperature range to -40°C to 125°C and lower the minimum voltage specification to 1.2 V, providing enhanced performance margins for demanding thermal environments while maintaining full electrical compatibility.

For Automotive Applications

The 74LVC2T45DC-Q100H and 74LVCH2T45DC-Q100H parts include AEC-Q100 automotive qualification and extended temperature ratings (-40°C to 125°C), suitable for automotive-grade designs requiring formal qualification documentation.

Packaging Considerations

All substitute parts maintain the 8-VSSOP package footprint. Differences exist only in supplier packaging format: Cut Tape (CT) & Digi-Reel for standard commercial applications, and Tape & Reel (TR) for high-volume manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC2T45DCURG4 be used as a direct replacement for SN74LVC2T45DCUTE4?

A: Yes. Both parts are Texas Instruments 74LVC series devices with identical electrical specifications, operating temperature range (-40°C to 85°C), voltage ranges (1.65 V ~ 5.5 V), and 8-VSSOP packaging. The difference is supplier packaging format only.

Q: What is the key difference between Texas Instruments 74LVC and Nexperia 74LVCH variants?

A: Both maintain identical channel configuration, data rate, and output type. The 74LVCH series from Nexperia extends the minimum voltage specification from 1.65 V to 1.2 V and offers extended temperature ratings to 125°C. Electrical compatibility is maintained for applications within the original voltage and temperature specifications.

Q: Are automotive-qualified versions pin-compatible with the original part?

A: Yes. The 74LVC2T45DC-Q100H and 74LVCH2T45DC-Q100H maintain identical pinout and 8-VSSOP package dimensions. The AEC-Q100 qualification adds manufacturing and reliability documentation suitable for automotive supply chains.

Q: Can I use a part with extended temperature range (-40°C to 125°C) in an application rated for -40°C to 85°C?

A: Yes. Extended temperature range parts are backward compatible with applications requiring narrower temperature ranges. The part will operate within the original specification window.

Q: What packaging format should I select for my application?

A: Cut Tape (CT) & Digi-Reel format is standard for component-level procurement and prototyping. Tape & Reel (TR) format is optimized for automated assembly lines and high-volume production. Electrical specifications are identical between formats.

Q: Is the SN74LVC2T45DCUT part currently available?

A: Yes. SN74LVC2T45DCUT has active product status with 2,100 pieces in stock, making it the recommended direct replacement for the discontinued SN74LVC2T45DCUTE4.

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