74AVC1T45FX4-7 Voltage Level Translator Equivalent & Substitute Parts

Part Overview

The 74AVC1T45FX4-7 is a bidirectional voltage level translator manufactured by Diodes Incorporated, designed for single-channel logic signal translation between different voltage domains. This device operates with supply voltages ranging from 1.2 V to 3.6 V on both VCCA and VCCB, featuring tri-state output capability and surface mount packaging in the X2-DFN1409-6 package.

The 74AVC1T45FX4-7 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Active alternatives with identical or enhanced electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	1
Voltage - VCCA	1.2 V ~ 3.6 V
Voltage - VCCB	1.2 V ~ 3.6 V
Output Type	Tri-State
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	6-XFDFN
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74AVC1T45FX4-7 is determined by the following critical parameters: bidirectional single-channel voltage level translation capability, VCCA and VCCB voltage ranges, tri-state output configuration, and surface mount packaging. Substitute parts are grouped into three categories based on their relationship to the original specification:

MFR Recommended Substitute (Direct Replacement): 74AVCH1T45FX4-7 maintains identical electrical specifications and packaging while offering active product status and enhanced output characteristics (tri-state, non-inverted).

Parametric Equivalents: Parts with matching core translation functionality and voltage ranges but different package types (X1-DFN1010-6, 6-XSON, 6-TSSOP) or enhanced performance specifications (higher data rates, extended temperature ranges, automotive qualification).

Upgrade Options: Parts offering extended voltage ranges (VCCB up to 5.5 V), higher data rates (100 Mbps to 500 Mbps), auto-direction sensing, or automotive-grade qualification (AEC-Q100).

Parameter Comparison

Part Number	Manufacturer	Product Status	VCCA Range	VCCB Range	Output Type	Data Rate	Temp Range	Package	Supplier Device Package
74AVC1T45FX4-7	Diodes Incorporated	Obsolete	1.2 V ~ 3.6 V	1.2 V ~ 3.6 V	Tri-State	—	-40°C ~ 85°C	6-XFDFN	X2-DFN1409-6
74AVCH1T45FX4-7	Diodes Incorporated	Active	1.2 V ~ 3.6 V	1.2 V ~ 3.6 V	Tri-State, Non-Inverted	—	-40°C ~ 85°C	6-XFDFN	X2-DFN1409-6
74AVC1T45FW5-7	Diodes Incorporated	Obsolete	1.2 V ~ 3.6 V	1.2 V ~ 3.6 V	Tri-State	—	-40°C ~ 85°C	6-XFDFN	X1-DFN1010-6
NTB0101GM,115	NXP USA Inc.	Obsolete	1.2 V ~ 3.6 V	1.65 V ~ 5.5 V	Tri-State, Non-Inverted	100 Mbps	-40°C ~ 125°C	6-XFDFN	6-XSON, SOT886 (1.45x1)
74AVC1T45GM,132	Nexperia USA Inc.	Active	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500 Mbps	-40°C ~ 125°C	6-XFDFN	6-XSON, SOT886 (1.45x1)
74AVC1T45GN,132	NXP USA Inc.	Active	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500 Mbps	-40°C ~ 125°C	6-XFDFN	6-XSON (0.9x1)
74AVC1T45GW,125	Nexperia USA Inc.	Active	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500 Mbps	-40°C ~ 125°C	6-TSSOP, SC-88, SOT-363	6-TSSOP
74AVC1T45GW-Q100H	Nexperia USA Inc.	Active	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500 Mbps	-40°C ~ 125°C	6-TSSOP, SC-88, SOT-363	6-TSSOP
74AVCH1T45GN,132	Nexperia USA Inc.	Active	0.8 V ~ 3.6 V	0.8 V ~ 3.6 V	Tri-State, Non-Inverted	500 Mbps	-40°C ~ 125°C	6-XFDFN	6-XSON (0.9x1)
74LVCH1T45GN,132	NXP USA Inc.	Active	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420 Mbps	-40°C ~ 125°C	6-XFDFN	6-XSON (0.9x1)
74LVCH1T45GW,125	Nexperia USA Inc.	Active	1.2 V ~ 5.5 V	1.2 V ~ 5.5 V	Tri-State, Non-Inverted	420 Mbps	-40°C ~ 125°C	6-TSSOP, SC-88, SOT-363	6-TSSOP

Engineering Selection Recommendations

Direct Replacement (Recommended for Pin-Compatible Designs): 74AVCH1T45FX4-7 is the primary substitute, offering identical packaging (X2-DFN1409-6) and voltage specifications while maintaining active product status. This part is suitable for direct board-level substitution without layout modifications.

Active Alternatives with Enhanced Performance: 74AVC1T45GM,132 and 74AVC1T45GN,132 provide extended lower voltage support (0.8 V minimum), higher data rates (500 Mbps), and extended operating temperature range (-40°C to 125°C). These parts are recommended for new designs or when performance headroom is required.

Automotive-Grade Option: 74AVC1T45GW-Q100H includes AEC-Q100 automotive qualification and is suitable for automotive applications requiring formal qualification documentation.

Extended Voltage Range Option: 74LVCH1T45GN,132 and 74LVCH1T45GW,125 support higher VCCB voltage (up to 5.5 V) and are appropriate for designs requiring translation between 3.3 V and 5 V logic domains.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can 74AVCH1T45FX4-7 be used as a direct replacement for 74AVC1T45FX4-7? A: Yes. Both parts share identical voltage specifications (1.2 V ~ 3.6 V on VCCA and VCCB), package type (X2-DFN1409-6), and operating temperature range (-40°C ~ 85°C). The 74AVCH1T45FX4-7 is active and recommended for direct substitution.

Q: What is the difference between 74AVC1T45GN,132 and 74AVCH1T45GN,132? A: Both parts offer identical electrical performance (0.8 V ~ 3.6 V, 500 Mbps, -40°C ~ 125°C) and packaging (6-XSON). The primary difference is the manufacturer: 74AVC1T45GN,132 is from NXP USA Inc., while 74AVCH1T45GN,132 is from Nexperia USA Inc. Both are active products.

Q: Can I use 74LVCH1T45GN,132 if my design uses 3.3 V logic? A: Yes. The 74LVCH1T45GN,132 supports 1.2 V ~ 5.5 V on both VCCA and VCCB, making it compatible with 3.3 V systems. However, verify that your design does not require the lower minimum voltage support (0.8 V) offered by 74AVC series parts.

Q: What is the difference between 6-XSON and 6-TSSOP packages? A: Both are 6-pin surface mount packages with identical electrical functionality. 6-XSON (SOT886) is a smaller footprint (1.45x1 mm or 0.9x1 mm), while 6-TSSOP (SC-88, SOT-363) is a larger package. Package selection depends on PCB layout constraints and assembly capabilities.

Q: Is 74AVC1T45GW-Q100H suitable for automotive applications? A: Yes. The 74AVC1T45GW-Q100H includes AEC-Q100 automotive qualification and is specifically designed for automotive-grade applications requiring formal qualification documentation.

Q: What does "auto-direction sensing" mean in the NTB0101GM,115 specification? A: Auto-direction sensing enables the translator to automatically detect the direction of signal flow on the bidirectional channel, eliminating the need for external direction control signals. This feature simplifies circuit design in applications with dynamic signal direction changes.

Q: Can I substitute an obsolete part with an active part from a different manufacturer? A: Yes, provided the active substitute meets or exceeds the electrical specifications of the original part. All recommended active substitutes maintain compatibility with the 74AVC1T45FX4-7 voltage ranges, channel configuration, and output type. Verify package compatibility with your PCB layout before implementation.

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