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NXP Semiconductors NTSX2102GDH
- Part No.:
- NTSX2102GDH
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NTSX2102GDH.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,869
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Product details
Overview
NTSX2102GDH from NXP Semiconductors is a 2-bit dual-supply auto-direction-sensing voltage-level transceiver with open-drain I/O, enabling bidirectional translation between 1.65 V–5.5 V domains (e.g., 1.8 V ↔ 3.3 V). It features independent VCC(A) and VCC(B) supplies, active-HIGH OE control, IOFF partial power-down protection, and operates across −40 °C to +85 °C for I²C/SMBus interface bridging in mixed-voltage embedded systems.
For engineers reviewing the NTSX2102GDH datasheet, NTSX2102GDH pinout, NTSX2102GDH application, or NTSX2102GDH equivalent, this page delivers verified electrical parameters, package-specific pin mapping, real-world interface constraints (e.g., 50 Mbps max data rate, 600 pF load limit), and validated alternatives for voltage translation in space-constrained, low-power designs.
Technical Context
The NTSX2102GDH implements a switch-type architecture using dual N-channel pass-gate transistors per channel, eliminating external direction control. Its edge-rate accelerator circuit-comprising one-shot triggered PMOS/NMOS drivers-reduces tTLH/tTHL to as low as 3 ns (VCC = 5.0 V) while maintaining <1 ns output skew between channels.
IOFF circuitry ensures leakage <±2 µA when either VCC(A) or VCC(B) is at 0 V, enabling safe partial power-down. Input tolerance up to 5.5 V and ESD robustness (HBM >2000 V, CDM >2000 V) support direct interfacing with legacy 5 V logic without level-shifting buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A): 1.65–5.5 V; VCC(B): 1.65–5.5 V - enables translation across 1.8 V/2.5 V/3.3 V/5.0 V nodes without external regulators |
| Max Data Rate | 50 Mbps - supports high-speed I²C Fast-mode Plus (1 Mbps) and UART up to 32 Mbps under typical conditions |
| Propagation Delay | tPLH/tPHL ≤ 7 ns (A↔B, VCC=5.0 V) - ensures timing compliance in sub-10 ns critical paths |
| IOFF Leakage | ±2 µA at 0 V supply - prevents backflow current during system sleep or hot-swap sequencing |
| ESD Rating | HBM >2000 V, CDM >2000 V - meets industrial-grade handling requirements without additional protection circuitry |
| Capacitive Load Limit | 600 pF - defines maximum trace+connector capacitance before edge acceleration fails to reach rail |
| Operating Temp | −40 °C to +85 °C - qualified for automotive cabin and industrial control environments |
Pinout & Package
XSON8 package: plastic extremely thin small outline, no leads, 8-terminal, 3.0 × 2.0 × 0.5 mm body (SOT996-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC(A) | Supply A reference | Bias for A-side I/O and OE input; sets VIH/VIL thresholds for An and OE pins |
| A1, A2 | Data I/O (A side) | Open-drain bidirectional ports referenced to VCC(A); require external pull-up to VCC(A) |
| GND | Ground reference | Common 0 V return for both supply domains and internal logic |
| OE | Output enable | Active-HIGH control: LOW forces all I/O into high-impedance OFF-state |
| B1, B2 | Data I/O (B side) | Open-drain bidirectional ports referenced to VCC(B); require external pull-up to VCC(B) |
| VCC(B) | Supply B reference | Bias for B-side I/O; determines VOL and capacitive drive strength on Bn pins |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing | Eliminates need for external direction-control signal or GPIO, reducing PCB routing and firmware overhead |
| Edge-rate acceleration | One-shot circuit cuts tTLH/tTHL by >50% vs passive translators, enabling reliable 50 Mbps operation with 600 pF load |
| Independent dual-supply operation | VCC(A) and VCC(B) can be powered in any sequence - simplifies power sequencing in multi-rail systems |
| IOFF partial power-down | Prevents damaging back-current when one supply is off, supporting hot-plug and low-power sleep modes |
| Open-drain I/O architecture | Matches native I²C/SMBus bus topology; eliminates shoot-through risk during voltage domain crossing |
Applications
| I²C Bus Bridging | UART Level Translation |
|---|---|
Use Scenario: Connecting a 3.3 V microcontroller's I²C master to a 1.8 V sensor node across separate power domains. IC Role / Device Role / Timing Role: Bidirectional voltage translator with auto-direction detection on SDA/SCL lines; maintains I²C timing budgets via sub-7 ns propagation delay. Use Value: Enables interoperability without clock stretching or software direction management; IOFF prevents bus contention during MCU sleep. | Use Scenario: Interfacing a 5.0 V industrial PLC's UART TX/RX to a 2.5 V FPGA-based protocol converter. IC Role / Device Role / Timing Role: Open-drain transceiver translating logic levels while preserving UART framing integrity at up to 32 Mbps. Use Value: Eliminates discrete MOSFET translators and associated pull-up resistors; ESD rating avoids external TVS diodes. |
| GPIO Voltage Translation | SMBus System Management |
Use Scenario: Extending 3.3 V SoC GPIOs to control 5.0 V peripheral enable lines in a battery-powered gateway. IC Role / Device Role / Timing Role: Dual-channel level shifter with OE-controlled tri-state for dynamic isolation of unused GPIOs. Use Value: Reduces standby current via IOFF; 5.5 V-tolerant inputs allow direct connection to 5 V peripherals without series resistors. | Use Scenario: Isolating SMBus host (3.3 V) from memory module SPD (1.5 V DDR4) in server DIMM slots. IC Role / Device Role / Timing Role: Robust bidirectional translator meeting SMBus timing specs (tBUF, tHD:STA) with guaranteed 1.65 V compatibility. Use Value: Prevents bus lockup during hot-plug events via IOFF; HBM >2000 V withstands repeated insertion cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | 2-bit, dual-supply, auto-direction, but uses push-pull outputs (not open-drain); no IOFF; max 3.6 V VCC | Not suitable for I²C/SMBus open-drain buses; requires external pull-ups only on one side | Select only for push-pull GPIO translation where bus contention risk is absent |
| PCA9306DCUR | 2-bit, dual-supply, open-drain, but lacks auto-direction sensing; requires external DIR pin | Needs dedicated GPIO for direction control; adds firmware complexity and routing overhead | Choose when deterministic direction control is preferred over automatic sensing |
Compared with TXS0102DCUR and PCA9306DCUR, the NTSX2102GDH uniquely combines open-drain I/O, auto-direction sensing, IOFF protection, and 5.5 V tolerance - making it the only drop-in solution for robust, low-overhead I²C/SMBus bridging in mixed-voltage systems.
Availability
NTSX2102GDH is available at Aetrix Electronics and suitable for I²C bus bridging, UART level translation, GPIO interfacing, and SMBus system management requiring stable component supply across automotive, industrial, and computing applications.
Supply support for NTSX2102GDH 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The NTSX2102GDH belongs to NXP's auto-direction voltage translator product line, engineered specifically for seamless, low-latency bidirectional level shifting in open-drain communication buses like I²C and SMBus.
FAQ
What is the maximum capacitive load supported by the NTSX2102GDH?
The NTSX2102GDH is characterized for reliable edge-rate acceleration up to 600 pF total lumped capacitance on either A or B port. Exceeding this value risks incomplete rail-to-rail transitions within the one-shot pulse duration (≈25 ns), leading to signal integrity issues or failed edge detection. PCB layout must use short traces and low-capacitance connectors to stay within this limit.
Does the NTSX2102GDH require external pull-up resistors?
Yes, the NTSX2102GDH requires external pull-up resistors: each A1/A2 pin must be pulled to VCC(A), and each B1/B2 pin must be pulled to VCC(B). The resistor value must be selected to meet VOL specifications (<0.4 V at 6 mA) and rise-time requirements of the target bus (e.g., I²C standard-mode: ≤1 kΩ for 100 kHz).
Can the NTSX2102GDH operate with VCC(A) = 1.8 V and VCC(B) = 5.0 V?
Yes, the NTSX2102GDH supports asymmetric supply configurations including VCC(A) = 1.8 V and VCC(B) = 5.0 V. Its inputs tolerate up to 5.5 V, and its IOFF circuit remains functional across the full 1.65–5.5 V range on both supplies, ensuring safe operation and no back-current during translation.
How does the auto-direction sensing work in the NTSX2102GDH?
The NTSX2102GDH uses internal pass-gate transistors and an edge-detection circuit that monitors voltage transitions on both A and B ports. When a falling edge occurs on one side, the device automatically enables conduction toward the opposite side within nanoseconds - no external direction signal or timing delay is needed, enabling true plug-and-play bidirectional translation.
Is the NTSX2102GDH pin-compatible with other NTSX2102 variants?
Yes, the NTSX2102GDH shares identical pinout and functionality with NTSX2102GD (XSON8), differing only in tape-and-reel packaging and moisture sensitivity level (MSL) designation. Both use SOT996-2 package with identical 3.0 × 2.0 × 0.5 mm footprint and pin assignments per Table 3.
NTSX2102GDH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.65 V ~ 5.5 V
- Voltage - VCCB:
- 1.65 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Tri-State
- Data Rate:
- 50Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN
NTSX2102GDH FAQ
1.How can I place an order for NTSX2102GDH through Aetrix?
Please submit a Request for Quotation (RFQ) for NTSX2102GDH 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 NTSX2102GDH reliable?
The price and inventory of NTSX2102GDH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTSX2102GDH is usually 5 days.
3.What payment methods are accepted for NTSX2102GDH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTSX2102GDH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTSX2102GDH?
NTSX2102GDH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTSX2102GDH 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 NTSX2102GDH?
For technical support, including NTSX2102GDH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTSX2102GDH requirements.
6.How does Aetrix verify that NTSX2102GDH is sourced from the original manufacturer or authorized distributors?
All NTSX2102GDH 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 NTSX2102GDH meets industry standards.
7.What is the process for return or replacement of NTSX2102GDH?
All NTSX2102GDH units undergo pre-shipment inspection (PSI). If there is an issue with NTSX2102GDH, 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 NTSX2102GDH part is unused and in its original packaging.
Return procedure for NTSX2102GDH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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