NTS0102GF,115 Voltage Level Translator Equivalent & Substitute Parts

Part Overview

The NTS0102GF,115 is a bidirectional voltage level translator manufactured by NXP Semiconductors, designed for translating logic signals between different voltage domains. This device features 1 circuit with 2 channels per circuit, supporting data rates up to 50Mbps with auto-direction sensing capability. The part is currently classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The device operates across VCCA range of 1.65V to 3.6V and VCCB range of 2.3V to 5.5V, with open drain and tri-state output options.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1.65V ~ 3.6V
Voltage - VCCB	2.3V ~ 5.5V
Output Type	Open Drain, Tri-State
Data Rate	50Mbps
Operating Temperature	-40°C ~ 125°C (TA)
Features	Auto-Direction Sensing
Package / Case	8-XFDFN
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the NTS0102GF,115 is determined by the following critical parameters:

Core Functional Requirements:

Bidirectional voltage level translation capability
Single circuit with 2 channels per circuit configuration
Voltage domain support: VCCA 1.65V–3.6V and VCCB 2.3V–5.5V minimum
Open drain or tri-state output capability
Data rate minimum 50Mbps
Operating temperature range -40°C to 125°C
Auto-direction sensing feature (where applicable)

Packaging & Compliance:

Surface mount technology
8-pin package variants (XFDFN, TSSOP, VSSOP, or equivalent)
ROHS3 compliance
MSL rating 1 or better

Substitute parts are grouped into three categories: manufacturer-recommended direct replacements (NXP product line), parametric equivalents (alternative manufacturers with matching electrical specifications), and functional alternatives (parts with enhanced performance or different packaging options).

Parameter Comparison

Part Number	Manufacturer	Product Status	Translator Type	Channels	VCCA Range	VCCB Range	Output Type	Data Rate	Package	Auto-Direction Sensing
NTS0102GF,115	NXP Semiconductors	Obsolete	Voltage Level	2	1.65V–3.6V	2.3V–5.5V	Open Drain, Tri-State	50Mbps	8-XFDFN	Yes
NTS0102JKZ	NXP USA Inc.	Active	Voltage Level	2	1.65V–3.6V	2.3V–5.5V	Open Drain, Push-Pull	50Mbps	8-X2SON	No
NTS0102DP-Q100H	NXP USA Inc.	Active	Voltage Level	2	1.65V–3.6V	2.3V–5.5V	Open Drain, Tri-State	50Mbps	8-TSSOP	Yes
NTS0102GT,115	NXP USA Inc.	Not For New Designs	Voltage Level	2	1.65V–3.6V	2.3V–5.5V	Open Drain, Tri-State	50Mbps	8-XSON	Yes
74AVC2T245GUX	Nexperia USA Inc.	Active	Translation Transceiver	2	0.8V–3.6V	0.8V–3.6V	3-State	Not specified	10-XQFN	No
74AVC2T45DC-Q100H	Nexperia USA Inc.	Active	Voltage Level	2	0.8V–3.6V	0.8V–3.6V	Tri-State, Non-Inverted	500Mbps	8-VSSOP	No
74AVC2T45DP-Q100H	Nexperia USA Inc.	Active	Voltage Level	2	0.8V–3.6V	0.8V–3.6V	Tri-State, Non-Inverted	500Mbps	8-TSSOP	No
74LVC2T45DC,125	Nexperia USA Inc.	Active	Voltage Level	2	1.2V–5.5V	1.2V–5.5V	Tri-State, Non-Inverted	420Mbps	8-VSSOP	No
74LVCH2T45DC,125	Nexperia USA Inc.	Active	Voltage Level	2	1.2V–5.5V	1.2V–5.5V	Tri-State, Non-Inverted	420Mbps	8-VSSOP	No
FXLA102L8X	Fairchild Semiconductor	Active	Voltage Level	2	1.1V–3.6V	1.1V–3.6V	Tri-State, Non-Inverted	140Mbps	8-UFQFN	Yes
MAX13014EKA+T	Analog Devices Inc./Maxim Integrated	Active	Voltage Level	2	1.2V–3.6V	1.65V–3.6V	Tri-State, Non-Inverted	100Mbps	SOT-23-8	No

Engineering Selection Recommendations

Primary Recommendation: NTS0102DP-Q100H

The NTS0102DP-Q100H is the manufacturer-recommended replacement for the obsolete NTS0102GF,115. This part maintains identical electrical specifications (VCCA 1.65V–3.6V, VCCB 2.3V–5.5V, 50Mbps data rate) and preserves the auto-direction sensing feature and tri-state output configuration. The primary difference is packaging format (8-TSSOP versus 8-XFDFN), which requires PCB layout modification but ensures continued support from NXP. This part carries AEC-Q100 automotive qualification and ROHS3 compliance.

Secondary Recommendation: NTS0102JKZ

The NTS0102JKZ is an active NXP product with matching voltage specifications and data rate. This part differs in output type (push-pull instead of tri-state) and package format (8-X2SON). Selection of this part requires verification that push-pull output is compatible with the application circuit.

Alternative Recommendation: 74AVC2T45DC-Q100H or 74AVC2T45DP-Q100H

The 74AVC2T45 series from Nexperia provides enhanced performance (500Mbps data rate) with symmetric voltage supply ranges (0.8V–3.6V for both VCCA and VCCB). These parts are active products with AEC-Q100 qualification. The symmetric voltage range differs from the original part's asymmetric specification; application circuits must accommodate this difference. Available in 8-VSSOP and 8-TSSOP packages.

Functional Alternative: 74LVC2T45DC,125 or 74LVCH2T45DC,125

The 74LVC and 74LVCH series support wider voltage ranges (1.2V–5.5V) and deliver 420Mbps performance. These parts are suitable for applications requiring extended voltage domain support. Both are active products with ROHS3 compliance.

Lower Performance Alternative: FXLA102L8X

The FXLA102L8X from Fairchild Semiconductor provides bidirectional translation with auto-direction sensing and power-off protection features. This part operates at 140Mbps and supports symmetric voltage ranges (1.1V–3.6V). Operating temperature range is limited to -40°C to 85°C. Selection requires confirmation that reduced data rate and temperature range are acceptable.

Frequently Asked Questions (FAQ)

Q: Can NTS0102DP-Q100H directly replace NTS0102GF,115 without circuit modification?

A: Electrical specifications are identical, but PCB layout modification is required due to package format change from 8-XFDFN to 8-TSSOP. Pinout compatibility must be verified against the specific package datasheets.

Q: What is the primary difference between NTS0102JKZ and NTS0102DP-Q100H?

A: Both are active NXP products with identical voltage specifications. NTS0102JKZ uses push-pull output while NTS0102DP-Q100H uses tri-state output. The original part (NTS0102GF,115) specified tri-state output, making NTS0102DP-Q100H the closer functional match.

Q: Why do the 74AVC2T45 series parts have symmetric voltage ranges instead of asymmetric?

A: The 74AVC2T45 architecture is designed for symmetric voltage domain translation. Applications requiring asymmetric voltage ranges (such as 1.65V–3.6V to 2.3V–5.5V) must use NXP NTS0102 series parts or verify that symmetric operation is acceptable.

Q: Is automotive qualification required for this application?

A: The original part does not specify automotive qualification. However, NTS0102DP-Q100H and 74AVC2T45 series parts carry AEC-Q100 qualification, which is beneficial for automotive or high-reliability applications. Non-automotive applications can use any active product listed.

Q: What is the significance of auto-direction sensing?

A: Auto-direction sensing automatically determines signal direction on bidirectional channels without external control signals. The original NTS0102GF,115 includes this feature. Among substitutes, NTS0102DP-Q100H and FXLA102L8X retain this capability. Other alternatives require external direction control or operate without direction sensing.

Q: Can FXLA102L8X be used in applications requiring -40°C to 125°C operation?

A: No. FXLA102L8X is rated only to 85°C maximum. Applications requiring full -40°C to 125°C operation must use NXP NTS0102 series or Nexperia 74AVC/74LVC series parts.

Q: What packaging options are available for direct PCB replacement?

A: NTS0102DP-Q100H (8-TSSOP) is the closest match for PCB replacement. 74AVC2T45DP-Q100H also uses 8-TSSOP packaging. Other alternatives use different packages (8-VSSOP, 8-XQFN, SOT-23-8, 8-UFQFN) requiring layout redesign.

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