74AXP1T45GXZ Equivalent & Substitute Parts

Part Overview

The 74AXP1T45GXZ is a voltage level translator IC manufactured by Nexperia USA Inc., designed for bidirectional signal translation between different voltage domains. This single-channel, single-circuit translator operates with supply voltages ranging from 0.9 V to 5.5 V on both VCCA and VCCB rails, making it suitable for applications requiring flexible voltage level conversion. The device is housed in a 6-X2SON (1.0x0.8) surface mount package and features tri-state output capability. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the 74AXP1T45GXZ becomes unavailable, when alternative packaging formats are required for specific PCB layouts, or when application requirements demand enhanced performance characteristics such as higher data rates or different output types.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	1
Voltage - VCCA Range	0.9 V ~ 5.5 V
Voltage - VCCB Range	0.9 V ~ 5.5 V
Output Type	Tri-State
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	6-XFDFN
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the 74AXP1T45GXZ is determined by the following critical parameters:

Primary Substitution Criteria:

Translator Type: Voltage Level (all substitutes must be voltage level translators)
Channel Type: Bidirectional (all substitutes must support bidirectional signal translation)
Number of Circuits: 1 (single circuit requirement)
Channels per Circuit: 1 (single channel requirement)
Output Type: Tri-State capability (required for functional equivalence)
Mounting Type: Surface Mount (all substitutes are surface mount)

Secondary Compatibility Factors:

Voltage supply ranges (VCCA and VCCB) must overlap with or exceed the 0.9 V ~ 5.5 V specification
Operating temperature range must support the -40°C ~ 125°C requirement or be suitable for the intended application
Package form factor and pin count must be compatible with PCB layout constraints
RoHS3 compliance and MSL 1 rating are standard across all listed substitutes

Substitutes are grouped by their ability to meet these core requirements while offering variations in package type, data rate capability, and additional features such as auto-direction sensing or thermal protection.

Parameter Comparison

Parameter	74AXP1T45GXZ	74LVC1T45Z6-7	ADG3301BKSZ-REEL7	FXLA101L6X	MAX13046EELT+T	SN74AVC1T45DCKT	SN74AVCH1T45DBVR
Manufacturer	Nexperia USA Inc.	Diodes Incorporated	Analog Devices Inc.	onsemi	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments
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
Number of Circuits	1	1	1	1	1	1	1
Channels per Circuit	1	1	1	1	1	1	1
Voltage - VCCA	0.9 V ~ 5.5 V	1.65 V ~ 5.5 V	1.15 V ~ 5.5 V	1.1 V ~ 3.6 V	1.1 V ~ 3.6 V	1.2 V ~ 3.6 V	1.2 V ~ 3.6 V
Voltage - VCCB	0.9 V ~ 5.5 V	1.65 V ~ 5.5 V	1.65 V ~ 5.5 V	1.1 V ~ 3.6 V	1.65 V ~ 5.5 V	1.2 V ~ 3.6 V	1.2 V ~ 3.6 V
Output Type	Tri-State	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Push-Pull	Tri-State, Non-Inverted	Tri-State, Non-Inverted
Data Rate	Not specified	Not specified	50 Mbps	140 Mbps	16 Mbps	500 Mbps	500 Mbps
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	6-XFDFN	SOT-563, SOT-666	6-TSSOP, SC-88, SOT-363	6-UFDFN	6-WFDFN	6-TSSOP, SC-88, SOT-363	SOT-23-6
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Functional Equivalents (Highest Compatibility):

The 74LVC1T45Z6-7 from Diodes Incorporated is the closest functional equivalent to the 74AXP1T45GXZ. Both devices share the same operating temperature range (-40°C ~ 125°C), identical circuit and channel configuration, and tri-state output capability. The primary difference is the voltage supply range, where the 74LVC1T45Z6-7 operates from 1.65 V minimum compared to 0.9 V for the 74AXP1T45GXZ. This substitute is suitable for applications where the lower voltage limit of 1.65 V is acceptable. Both parts maintain active production status and full RoHS3 compliance.

Extended Temperature Range Compatibility:

The 74AXP1T45GXZ and 74LVC1T45Z6-7 both support the full -40°C ~ 125°C operating temperature range. All other listed substitutes operate within -40°C ~ 85°C, which is a narrower range. Applications requiring operation above 85°C must use either the 74AXP1T45GXZ or 74LVC1T45Z6-7.

Voltage Supply Range Considerations:

The 74AXP1T45GXZ offers the widest voltage supply range (0.9 V ~ 5.5 V on both rails). Substitutes with narrower ranges include:

FXLA101L6X and MAX13046EELT+T: Limited to 1.1 V ~ 3.6 V on VCCA
SN74AVC1T45DCKT and SN74AVCH1T45DBVR: Limited to 1.2 V ~ 3.6 V on both rails

Selection of these substitutes requires verification that the application voltage supplies fall within their specified ranges.

Package Form Factor:

The 74AXP1T45GXZ uses a 6-X2SON (1.0x0.8) package. Substitutes offer alternative package options:

74LVC1T45Z6-7: SOT-563 or SOT-666
ADG3301BKSZ-REEL7: SC-70-6 (6-TSSOP, SC-88, SOT-363)
FXLA101L6X: 6-MicroPak (6-UFDFN)
MAX13046EELT+T: SC-70-6 (6-TSSOP, SC-88, SOT-363)
SN74AVC1T45DCKT: SC-70-6 (6-TSSOP, SC-88, SOT-363)
SN74AVCH1T45DBVR: SOT-23-6

Package selection depends on PCB layout constraints and available footprint space.

Performance Characteristics:

For applications requiring higher data rates, the following substitutes provide enhanced performance:

SN74AVC1T45DCKT: 500 Mbps
SN74AVCH1T45DBVR: 500 Mbps
FXLA101L6X: 140 Mbps
ADG3301BKSZ-REEL7: 50 Mbps

The 74AXP1T45GXZ does not specify a data rate, indicating it is suitable for general-purpose level translation applications without high-speed requirements.

Compliance and Certification:

All listed substitutes maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity) ratings, matching the 74AXP1T45GXZ specifications. All parts are classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring consistent regulatory treatment.

Active Production Status:

The 74AXP1T45GXZ is in active production. Among substitutes, all listed parts maintain active production status except NTB0101GM,115 (obsolete) and NTS0101GW,125 (last time buy). These two parts should be avoided for new designs.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC1T45Z6-7 directly replace the 74AXP1T45GXZ in all applications?

A: The 74LVC1T45Z6-7 is functionally equivalent for applications where the minimum supply voltage requirement is 1.65 V or higher. If your application requires operation below 1.65 V on either VCCA or VCCB, the 74LVC1T45Z6-7 is not suitable. Both devices support the same -40°C ~ 125°C temperature range and tri-state output configuration, making them compatible for most general-purpose level translation tasks.

Q: What is the significance of the voltage supply range differences?

A: The voltage supply range defines the minimum and maximum supply voltages at which the device operates correctly. The 74AXP1T45GXZ operates from 0.9 V to 5.5 V on both VCCA and VCCB, providing the widest flexibility. Substitutes with narrower ranges (such as 1.65 V minimum) cannot be used in applications requiring lower supply voltages. Always verify that your application's supply voltages fall within the substitute part's specified range before selection.

Q: Why do some substitutes have different operating temperature ranges?

A: The 74AXP1T45GXZ and 74LVC1T45Z6-7 support -40°C ~ 125°C operation, while most other substitutes are limited to -40°C ~ 85°C. This difference reflects the thermal design and qualification testing of each device. Applications requiring operation above 85°C must use parts explicitly rated for that temperature range. For applications operating within -40°C ~ 85°C, all listed substitutes are suitable from a temperature perspective.

Q: How do package differences affect substitution?

A: The 74AXP1T45GXZ uses a 6-X2SON (1.0x0.8) package, while substitutes use various 6-pin packages including SOT-563, SC-70-6, 6-MicroPak, and SOT-23-6. Package selection depends on your PCB layout and available footprint space. While all packages contain 6 pins and support the same functional requirements, the physical dimensions and pin spacing differ. Verify that your PCB layout can accommodate the substitute package before selection. Pin-to-pin functional compatibility must also be confirmed with the device datasheet.

Q: What does "tri-state output" mean, and why is it important for substitution?

A: Tri-state output means the device can drive the output to a high level, a low level, or a high-impedance (floating) state. This capability is essential for bidirectional level translation, allowing the output to be disabled when the device is not actively driving the signal. All listed substitutes maintain tri-state output capability, ensuring functional compatibility. Some substitutes specify "tri-state, non-inverted" output, indicating the output polarity matches the input without inversion.

Q: Are there substitutes with higher data rate capabilities?

A: Yes. The SN74AVC1T45DCKT and SN74AVCH1T45DBVR both support 500 Mbps data rates, compared to the 74AXP1T45GXZ which does not specify a data rate. The FXLA101L6X supports 140 Mbps, and the ADG3301BKSZ-REEL7 supports 50 Mbps. If your application requires high-speed signal translation, these higher-performance substitutes are available. However, verify that the voltage supply range and operating temperature of the high-speed substitute match your application requirements.

Q: What is the difference between push-pull and tri-state output types?

A: Tri-state output can drive high, low, or high-impedance states, making it suitable for bidirectional applications and bus sharing. Push-pull output actively drives both high and low states but cannot enter a high-impedance state. The MAX13046EELT+T features push-pull output, which differs from the tri-state output of the 74AXP1T45GXZ. Push-pull output is suitable for point-to-point connections but not for shared bus applications where multiple devices drive the same signal line.

Q: Should I consider parts with auto-direction sensing features?

A: Auto-direction sensing is an optional feature available on some substitutes (ADG3301BKSZ-REEL7, FXLA101L6X, NTB0101GM,115, NTS0101GW,125) that automatically detects the direction of signal flow and configures the translator accordingly. This feature simplifies circuit design by eliminating the need for a separate direction control signal. However, it is not required for basic level translation functionality. If your application already includes direction control logic, substitutes without this feature are equally suitable.

Q: What does RoHS3 compliance mean?

A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates that the device does not contain restricted hazardous materials such as lead, cadmium, mercury, or certain brominated flame retardants. All listed substitutes maintain RoHS3 compliance, matching the 74AXP1T45GXZ specification. This compliance is required for many applications, particularly in consumer electronics and regulated industries.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 (Unlimited) indicates the device has unlimited shelf life and does not require special moisture control during storage or handling. This is the most favorable moisture sensitivity rating. All listed substitutes maintain MSL 1 rating, eliminating moisture-related concerns during component procurement, storage, and assembly.

Q: Can I use NTB0101GM,115 or NTS0101GW,125 in new designs?

A: NTB0101GM,115 is marked as obsolete, and NTS0101GW,125 is marked as last time buy. These designations indicate limited availability and potential discontinuation. For new designs, use only parts with active production status. The 74AXP1T45GXZ, 74LVC1T45Z6-7, and other active-status substitutes are recommended for new product development.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message