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NXP Semiconductors NXS0102GT115
- Part No.:
- NXS0102GT115
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NXS0102GT115.pdf
- Description:
- IC BUS TRANSCEIVER NTSX2102 SER
- Quantity:
- Payment:
- Shipping:
Inventory:3,314
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Product details
Overview
NXS0102GT115 from NXP Semiconductors is a 2-bit dual-supply auto-sensing bidirectional voltage-level translating transceiver with open-drain I/O, supporting 1.65 V–3.6 V on side A and 2.3 V–5.5 V on side B. It enables seamless interfacing between 1.8 V/2.5 V/3.3 V and 5.0 V domains in I²C/SMBus systems without external direction control. Its IOFF circuitry ensures partial power-down protection and backflow current prevention during supply sequencing.
For engineers reviewing the NXS0102GT115 datasheet, NXS0102GT115 pinout, NXS0102GT115 application, or NXS0102GT115 equivalent, key selection criteria include its auto-direction sensing capability, 50 Mbps push-pull data rate, −40 °C to +125 °C operating range, integrated 10 kΩ internal pull-ups per port, and XSON8 (SOT833-1) 1.0 × 1.95 × 0.5 mm package with 8 terminals.
Technical Context
The NXS0102GT115 implements a switch-type architecture using an N-channel pass-gate transistor and output edge-rate accelerator circuitry. Direction detection is fully autonomous-no external DIR signal required-and rising-edge acceleration occurs via PMOS bypass transistors triggered at ~VCCI/2, reducing tTLH to as low as 1.8 ns (B port, 5.0 V).
Its IOFF functionality disables outputs when either VCC(A) or VCC(B) drops to GND, preventing destructive backflow currents. Internal 10 kΩ pull-up resistors on both A and B ports are disabled when OE = LOW, and the device tolerates input voltages up to 5.5 V regardless of supply state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range A | 1.65 V to 3.6 V - supports 1.8 V and 3.3 V logic domains; must be ≤ VCC(B) |
| Supply Range B | 2.3 V to 5.5 V - compatible with 2.5 V, 3.3 V, and 5.0 V systems |
| Data Rate | 50 Mbps - maximum push-pull throughput under recommended conditions |
| Operating Temp | −40 °C to +125 °C - qualified for automotive and industrial environments |
| ESD Robustness | HBM Class 3B > 8000 V (B port), Class 2 > 2500 V (A port) - reduces system-level ESD hardening needs |
| IOFF Leakage | ±1 μA max (A/B port, VCC = 0 V) - prevents damaging current flow during partial power-down |
| Propagation Delay | A→B: 2.4–7.3 ns (varies with VCC/A/B); B→A: 0.7–5.9 ns - enables high-speed inter-domain signaling |
Pinout & Package
Package: XSON8 (SOT833-1), plastic extremely thin small outline package, no leads, 8 terminals, body dimensions 1.0 mm × 1.95 mm × 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A2 | Data I/O referenced to VCC(A) | Bidirectional signals tied to low-voltage domain (e.g., 1.8 V microcontroller) |
| B1, B2 | Data I/O referenced to VCC(B) | Bidirectional signals tied to high-voltage domain (e.g., 5.0 V sensor bus) |
| VCC(A) | Low-side supply pin | Must be ≤ VCC(B); powers A-port logic and internal pull-ups |
| VCC(B) | High-side supply pin | Enables translation up to 5.5 V; powers B-port logic and pull-ups |
| OE | Active-HIGH output enable | Drives all I/Os into high-impedance OFF-state when LOW; referenced to VCC(A) |
| GND | Common ground reference | Single ground connection required; no separate analog/digital GND |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing | Eliminates need for external DIR control line and associated timing constraints in bidirectional buses |
| Integrated 10 kΩ pull-ups | Reduces external component count for I²C/SMBus open-drain operation; disabled during OE = LOW |
| Edge-rate acceleration | PMOS bypass circuit cuts tTLH by up to 50% vs. passive translation, enabling 50 Mbps operation |
| IOFF partial power-down | Prevents backflow current when one supply is off-critical for hot-swap and mixed-rail systems |
| Wide voltage tolerance | Inputs accept up to 5.5 V independent of VCC state-simplifies interface with legacy 5 V peripherals |
Applications
| I²C Bus Translation | SMBus Interface Bridging |
|---|---|
|
Use Scenario: Connecting a 1.8 V ARM-based SoC to a 5.0 V temperature sensor over I²C. IC Role / Device Role / Timing Role: Bidirectional level shifter with automatic direction detection and integrated pull-ups for SDA/SCL lines. Use Value: Eliminates external MOSFETs and direction logic; maintains I²C timing compliance up to 400 kHz standard mode. |
Use Scenario: Interfacing a 3.3 V baseboard management controller (BMC) with 2.5 V memory modules via SMBus. IC Role / Device Role / Timing Role: Voltage translator ensuring correct VOL/VOL thresholds across domains while preserving SMBus packet integrity. Use Value: Guarantees <10 ns skew between SDA/SCL channels and meets SMBus 100 kHz timing budgets. |
| GPIO Domain Isolation | UART Signal Level Shifting |
|
Use Scenario: Isolating GPIOs between a 2.5 V FPGA bank and 5.0 V industrial I/O expander. IC Role / Device Role / Timing Role: Dual-channel bidirectional translator with independent A/B supply rails and IOFF protection. Use Value: Enables safe hot-plug operation; prevents latch-up during FPGA configuration before 5 V rail stabilizes. |
Use Scenario: Level-shifting UART TX/RX between a 1.8 V Bluetooth module and 3.3 V host MCU. IC Role / Device Role / Timing Role: Open-drain transceiver supporting push-pull or open-drain drivers with sub-10 ns propagation delay asymmetry. Use Value: Supports UART baud rates up to 3 Mbps without signal distortion or timing violation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | TI part; same 2-bit auto-direction function but rated only to +85 °C; no IOFF; requires external pull-ups | Limited to commercial-temperature applications; lacks partial power-down safety for automotive use | Choose NXS0102GT115 for extended temperature or IOFF-critical designs; TXS0102DCUR where cost and footprint are primary |
| PCA9306DCUR | TI part; 2-bit I²C-only translator; fixed 1.2–3.6 V / 1.8–5.5 V ranges; no OE pin; no IOFF | Not suitable for general-purpose GPIO or UART; lacks enable control and power-down protection | Select NXS0102GT115 when OE control, wider voltage flexibility, or IOFF is required; PCA9306DCUR only for dedicated I²C links |
Compared with TXS0102DCUR and PCA9306DCUR, the NXS0102GT115 provides broader temperature qualification (−40 °C to +125 °C), integrated IOFF protection, active OE control, and internal pull-ups-making it uniquely suited for robust, mixed-rail embedded systems requiring fail-safe power sequencing.
Availability
NXS0102GT115 is available at Aetrix Electronics and suitable for I²C bus translation, SMBus interface bridging, and GPIO domain isolation requiring stable component supply across automotive, industrial, and computing platforms.
Supply support for NXS0102GT115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The NXS0102GT115 belongs to NXP's voltage translation product line, engineered specifically for robust, auto-directional level shifting in mixed-voltage systems where reliability, ESD immunity, and power-down safety are critical design requirements.
FAQ
What is the maximum allowable voltage difference between VCC(A) and VCC(B) for reliable operation of the NXS0102GT115?
The NXS0102GT115 requires VCC(A) ≤ VCC(B) during normal operation. While VCC(A) may exceed VCC(B) during power-up without damage, sustained operation with VCC(A) > VCC(B) violates the absolute maximum rating and risks functional failure. The valid operating window is VCC(A) = 1.65–3.6 V and VCC(B) = 2.3–5.5 V, with VCC(B) always ≥ VCC(A). This constraint ensures proper gate-biasing of the internal pass transistor and prevents shoot-through.
Does the NXS0102GT115 support true push-pull driving on both sides, or is it limited to open-drain configurations?
The NXS0102GT115 supports both open-drain and push-pull drivers on either side. Its architecture uses a pass-gate switch and edge-accelerator circuit that functions correctly with either driver type. However, the datasheet specifies 50 Mbps maximum data rate only for push-pull operation; open-drain performance depends on external pull-up strength and load capacitance. For I²C, the internal 10 kΩ pull-ups are sufficient for standard-mode speeds.
How does the IOFF feature of the NXS0102GT115 behave when only VCC(A) is powered and VCC(B) is at 0 V?
When VCC(B) = 0 V and VCC(A) is active, the NXS0102GT115 enters partial power-down mode: the B-side outputs are disabled, and IOFF circuitry limits leakage current to ±1 μA maximum. This prevents backflow current from VCC(A) into the unpowered B-side rail. The A-side I/Os remain functional but cannot drive the B-side lines-ensuring safe operation during asymmetric power sequencing common in modular systems.
Can the NXS0102GT115 be used to translate between 1.2 V and 3.3 V logic domains?
No-the NXS0102GT115 does not support 1.2 V operation. Its minimum VCC(A) is 1.65 V, making it incompatible with 1.2 V I/O standards. Attempting to operate below 1.65 V risks undefined behavior, excessive propagation delay, and potential failure to meet VOL/VOH thresholds. For 1.2 V interfaces, NXP's NXSA102 or alternative families with lower VCC(A) minima must be selected.
What is the purpose of the "one-shot" circuit in the NXS0102GT115, and how does it affect signal integrity?
The one-shot circuit in the NXS0102GT115 detects rising edges at ~VCCI/2 and activates PMOS bypass transistors for ~50 ns to accelerate output transitions. This reduces tTLH by up to 50%, enabling 50 Mbps operation. However, if PCB trace capacitance exceeds ~30 pF or reflections occur within the 50 ns window, re-triggering may cause overshoot or oscillation. Proper layout-short traces, controlled impedance, and minimal stubs-is essential to maintain signal integrity.
NXS0102GT115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Bulk
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.65 V ~ 3.6 V
- Voltage - VCCB:
- 2.3 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull, Tri-State
- Data Rate:
- 24Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN
NXS0102GT115 FAQ
1.How can I place an order for NXS0102GT115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NXS0102GT115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NXS0102GT115 reliable?
The price and inventory of NXS0102GT115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXS0102GT115 is usually 5 days.
3.What payment methods are accepted for NXS0102GT115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXS0102GT115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NXS0102GT115?
NXS0102GT115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NXS0102GT115 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NXS0102GT115?
For technical support, including NXS0102GT115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXS0102GT115 requirements.
6.How does Aetrix verify that NXS0102GT115 is sourced from the original manufacturer or authorized distributors?
All NXS0102GT115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NXS0102GT115 meets industry standards.
7.What is the process for return or replacement of NXS0102GT115?
All NXS0102GT115 units undergo pre-shipment inspection (PSI). If there is an issue with NXS0102GT115, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NXS0102GT115 part is unused and in its original packaging.
Return procedure for NXS0102GT115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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