NLSX4402FMUTCG Equivalent & Substitute Parts

Part Overview

The NLSX4402FMUTCG is a voltage level translator IC manufactured by onsemi, designed for bidirectional signal translation between different voltage domains. This device features 1 circuit with 2 channels per circuit, supporting data rates up to 20Mbps with auto-direction sensing and over-voltage protection. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Manufacturer Part Number	NLSX4402FMUTCG
Manufacturer	onsemi
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1.5 V ~ 5.5 V
Voltage - VCCB	1.5 V ~ 5.5 V
Output Type	Open Drain
Data Rate	20Mbps
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-UFDFN
Supplier Device Package	8-UDFN (1.45x1)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the NLSX4402FMUTCG is determined by the following critical parameters:

Primary Substitution Criteria:

Translator Type: Voltage Level
Channel Type: Bidirectional
Number of Circuits: 1
Channels per Circuit: 2
Voltage Range Compatibility: VCCA and VCCB must support 1.5 V ~ 5.5 V minimum
Output Type: Open Drain or Tri-State (functionally compatible)
Data Rate: Minimum 20Mbps
Operating Temperature: -40°C ~ 85°C minimum
Package Type: Surface Mount (8-pin variants acceptable)
RoHS Compliance: ROHS3 Compliant

Parametric Equivalent: NLVSX4373MUTAG from onsemi matches all core electrical parameters and maintains the same 8-UFDFN package family, with identical voltage ranges, bidirectional 2-channel configuration, and 20Mbps data rate. This part includes automotive-grade qualification (AEC-Q100).

Similar Alternatives: Parts from the 74AVC and 74AVCH series (Nexperia/NXP) provide enhanced performance with 500Mbps data rates and extended operating temperature ranges (-40°C ~ 125°C), while maintaining bidirectional 2-channel architecture and compatible voltage translation capability. These parts are active products with higher inventory availability.

Parameter Comparison

Parameter	NLSX4402FMUTCG	NLVSX4373MUTAG	74AVC2T45DC-Q100H	74AVC2T45DP,125	74AVCH2T45DC,125	74LVC2T45GN,115
Manufacturer	onsemi	onsemi	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Translator Type	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level	Voltage Level
Channel Type	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional	Bidirectional
Channels per Circuit	2	2	2	2	2	2
Voltage - VCCA	1.5 V ~ 5.5 V	1.5 V ~ 5.5 V	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	1.2 V ~ 5.5 V
Voltage - VCCB	1.5 V ~ 5.5 V	1.5 V ~ 5.5 V	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	1.2 V ~ 5.5 V
Output Type	Open Drain	Open Drain	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted
Data Rate	20Mbps	20Mbps	500Mbps	500Mbps	500Mbps	420Mbps
Operating Temperature	-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-UFDFN	8-UFDFN	8-VFSOP	8-TSSOP	8-VFSOP	8-XFDFN
Product Status	Obsolete	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q100 Qualification	No	Yes	Yes	No	No	No

Engineering Selection Recommendations

For Direct Parametric Equivalence: NLVSX4373MUTAG is the primary substitute for NLSX4402FMUTCG. Both parts maintain identical electrical specifications (1.5 V ~ 5.5 V voltage range, 20Mbps data rate, bidirectional 2-channel configuration) and belong to the same 8-UFDFN package family. NLVSX4373MUTAG includes automotive-grade qualification (AEC-Q100) and is currently in production with higher inventory availability (5479 pcs vs. 1600 pcs).

For Active Production Designs: The 74AVC2T45 and 74AVCH2T45 series from Nexperia/NXP provide active product status with significantly higher data rates (500Mbps vs. 20Mbps) and extended operating temperature range (-40°C ~ 125°C). These parts are suitable for applications requiring higher performance margins and long-term supply continuity. The 74AVC2T45DP,125 offers the largest inventory (82383 pcs) in 8-TSSOP packaging.

For Automotive Applications: 74AVC2T45DC-Q100H and 74AVC2T45DP-Q100H both carry AEC-Q100 qualification. The -Q100H suffix indicates automotive-grade qualification, making these parts appropriate for automotive-grade designs requiring higher reliability standards.

For Voltage Range Compatibility: 74LVC2T45GN,115 supports the extended upper voltage range (1.2 V ~ 5.5 V) matching the original part's 5.5 V maximum, while 74AVC series parts are limited to 3.6 V maximum. Select 74LVC2T45GN,115 for applications requiring full 5.5 V compatibility.

Frequently Asked Questions (FAQ)

Q: Can NLVSX4373MUTAG directly replace NLSX4402FMUTCG without circuit modifications?

A: Yes. NLVSX4373MUTAG is a parametric equivalent with identical voltage ranges (1.5 V ~ 5.5 V), bidirectional 2-channel configuration, 20Mbps data rate, and 8-UFDFN package family. Both parts feature auto-direction sensing and over-voltage protection. No circuit modifications are required.

Q: What is the difference between Open Drain and Tri-State output types in these translators?

A: Open Drain outputs require external pull-up resistors and can only pull the output low. Tri-State outputs can actively drive both high and low states. The 74AVC and 74AVCH series use Tri-State outputs, providing stronger drive capability and potentially faster signal transitions. Both output types are functionally compatible for bidirectional translation applications.

Q: Why do the 74AVC series parts have higher data rates (500Mbps vs. 20Mbps)?

A: The 74AVC series represents a more advanced technology generation with improved internal circuitry and optimized switching characteristics. Higher data rates indicate faster propagation delays and better signal integrity at higher frequencies. For applications operating at 20Mbps or below, both specifications are functionally equivalent.

Q: Are there package compatibility considerations when substituting with 74AVC or 74AVCH parts?

A: Yes. The original NLSX4402FMUTCG uses 8-UDFN (1.45x1) packaging. Substitute parts use different packages: 74AVC2T45DC-Q100H uses 8-VSSOP, 74AVC2T45DP,125 uses 8-TSSOP, and 74LVC2T45GN,115 uses 8-XSON. PCB layout modifications are required for different package types. Verify footprint compatibility before design implementation.

Q: Which substitute part has the best long-term availability?

A: 74AVC2T45DP,125 from Nexperia has the highest inventory (82383 pcs) and active product status, ensuring long-term supply continuity. NLVSX4373MUTAG, while parametrically equivalent, is also obsolete-status like the original part.

Q: Can I use 74AVC2T45 series parts in applications requiring 5.5 V operation?

A: No. The 74AVC2T45 series maximum voltage is 3.6 V. For applications requiring 5.5 V operation, use NLVSX4373MUTAG or 74LVC2T45GN,115, both supporting 1.5 V ~ 5.5 V or 1.2 V ~ 5.5 V respectively.

Q: What does AEC-Q100 qualification mean for automotive applications?

A: AEC-Q100 is an automotive electronics council qualification standard ensuring parts meet automotive reliability and quality requirements. Parts with AEC-Q100 qualification (NLVSX4373MUTAG, 74AVC2T45DC-Q100H, 74AVC2T45DP-Q100H) are approved for automotive-grade designs. Non-qualified parts may not meet automotive supply chain requirements.

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