My Inquiry
My Account
NXP Semiconductors NTSX2102TLH
- Part No.:
- NTSX2102TLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NTSX2102TLH.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,073
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NTSX2102TLH from NXP Semiconductors is a 2-bit dual-supply bidirectional voltage-level translating transceiver with auto-direction sensing and open-drain I/O architecture. It enables seamless interfacing between 1.65 V–5.5 V domains (e.g., 1.8 V ↔ 3.3 V I²C buses), features independent VCC(A) and VCC(B) supplies, supports up to 52 Mbit/s data rate at 5.0 V, and includes IOFF circuitry for partial power-down protection. It is used in mixed-voltage system interconnects where direction control is omitted.
For engineers reviewing the NTSX2102TLH datasheet, NTSX2102TLH pinout, NTSX2102TLH application, or NTSX2102TLH equivalent, this page delivers verified electrical parameters, XSON8 package layout, I²C/UART/GPIO use-case implementation guidance, and validated alternative options - all grounded in NXP's Rev. 2.3 product data sheet.
Technical Context
The NTSX2102TLH implements a switch-type translation architecture using dual N-channel pass-gate transistors per channel and edge-rate acceleration via one-shot circuits that activate for ~25 ns during signal transitions. Its auto-direction sensing eliminates external direction-control logic by detecting data flow polarity dynamically on A1/A2 and B1/B2 lines.
Each I/O pair operates as an open-drain interface referenced to its respective supply: A-side pins (A1, A2, OE) to VCC(A); B-side pins (B1, B2) to VCC(B). The OE input is active-HIGH and referenced to VCC(A); asserting LOW places all I/Os in high-impedance OFF-state, while IOFF ensures backflow current blocking during partial power-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply range | VCC(A) and VCC(B): 1.65 V to 5.5 V - supports interoperability across 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic domains without level-shifter configuration. |
| Max data rate | 52 Mbit/s at VCC(A) = VCC(B) = 5.0 V - enables high-speed I²C Fast-mode Plus and GPIO burst transfers. |
| Propagation delay | A↔B: ≤7 ns (typ) at 3.3 V - ensures sub-10 ns latency for time-critical bidirectional signaling. |
| IOFF leakage | ±2 μA max per port during power-down - prevents damaging back-current when one supply is inactive. |
| ESD rating | HBM >2000 V, CDM >2000 V - meets industrial-grade robustness requirements for board-level handling and operation. |
| Operating temp | –40 °C to +85 °C - qualified for automotive infotainment, industrial PLC, and consumer embedded applications. |
| Input capacitance | CI/O = 10 pF (A/B port, 5.0 V supplies) - minimizes capacitive loading on driving sources and preserves signal integrity. |
Pinout & Package
XSON8 package (SOT1052-2): plastic extremely thin small outline, no leads, 8 terminals, body size 3.0 × 2.0 × 0.5 mm, center thermal pad (non-electrical, optional PCB connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply for A-side I/Os and OE input - sets logic threshold and drive capability for A1, A2, OE. |
| 2 | A1 | Bidirectional open-drain I/O referenced to VCC(A) - connects to 1.65–5.5 V domain A (e.g., microcontroller GPIO). |
| 3 | A2 | Bidirectional open-drain I/O referenced to VCC(A) - second channel for parallel bus expansion or dual I²C lines. |
| 4 | GND | Common reference ground - required for noise immunity and proper IOFF clamp operation. |
| 5 | OE | Active-HIGH output enable (VCC(A)-referenced) - LOW disables all I/Os into high-Z state for bus arbitration or power gating. |
| 6 | B1 | Bidirectional open-drain I/O referenced to VCC(B) - interfaces to separate voltage domain B (e.g., sensor I²C slave). |
| 7 | B2 | Bidirectional open-drain I/O referenced to VCC(B) - second B-side channel supporting dual-bus isolation. |
| 8 | VCC(B) | Supply for B-side I/Os - independently configurable from VCC(A), enabling asymmetric voltage translation (e.g., 1.8 V ↔ 3.3 V). |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing | Eliminates need for external DIR control line - detects data flow direction dynamically via internal edge detection, reducing PCB routing and MCU GPIO count. |
| Edge-rate acceleration | One-shot circuit reduces tPLH/tPHL to ≤7 ns by temporarily lowering output impedance to 10–35 Ω during transitions - maintains signal fidelity at high data rates. |
| IOFF partial power-down | Blocks back-current when either VCC(A) or VCC(B) is at 0 V - protects powered subsystems during hot-swap or sleep-mode sequencing. |
| Wide voltage compatibility | Supports any combination of 1.65–5.5 V supplies on A/B sides - simplifies design reuse across multiple voltage-tier platforms without component substitution. |
| Open-drain topology | Enables wired-AND bus structures (e.g., I²C, SMBus) with external pull-ups to respective VCC rails - ensures correct logic levels and avoids contention. |
Applications
| I²C Bus Translation | UART Voltage Bridging |
|---|---|
|
Use Scenario: Interfacing a 3.3 V microcontroller I²C master with 1.8 V sensors or EEPROMs on the same bus. IC Role / Device Role / Timing Role: Bidirectional level translator with auto-direction sensing - handles SDA/SCL arbitration without direction control overhead. Use Value: Enables mixed-voltage I²C operation at up to 1 Mbit/s (Fast-mode Plus), preserving timing margins and eliminating software-controlled GPIO toggling. |
Use Scenario: Connecting a 5.0 V UART peripheral (e.g., GPS module) to a 2.5 V SoC UART interface. IC Role / Device Role / Timing Role: Open-drain transceiver translating TX/RX signals across non-matching logic thresholds - supports full-duplex asynchronous communication. Use Value: Maintains signal integrity with <7 ns propagation delay and 52 Mbit/s headroom, avoiding handshake delays or bit errors in high-throughput serial links. |
| GPIO Expansion Interface | Industrial Sensor Hub |
|
Use Scenario: Extending GPIO count from a low-voltage MCU (1.8 V) to control 3.3 V actuators or indicators. IC Role / Device Role / Timing Role: Dual-channel bidirectional buffer with independent supply domains - isolates voltage domains while sharing control logic. Use Value: Provides two isolated 1.8 V ↔ 3.3 V GPIO paths with <10 ns skew, enabling synchronized actuator triggering without level-shifter IC proliferation. |
Use Scenario: Aggregating multiple analog/digital sensors (1.8 V, 2.5 V, 3.3 V) onto a single 3.3 V industrial controller bus. IC Role / Device Role / Timing Role: Voltage-domain gateway with IOFF protection - safely isolates powered and unpowered sensor subsystems during maintenance or fault conditions. Use Value: Prevents backfeed damage during hot-swap of sensor modules and ensures ESD-robust (2000 V HBM) field reliability in factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NTSX0102TLH | Single-channel (1-bit) version; identical XSON8 package, same VCC range and IOFF spec; max data rate 52 Mbit/s. | Suitable only for point-to-point single-line translation (e.g., single I²C line), not dual-channel buses requiring A1/A2 or B1/B2 concurrency. | Select when only one bidirectional path is needed - saves board space and cost but cannot replace dual-channel functionality. |
| TXS0102DCUR | Texas Instruments part in VSSOP8 package; 1.65–3.6 V VCCA/VCCB range; max 60 Mbit/s; no IOFF; different pinout (OE on pin 1). | Lacks partial power-down protection; limited to ≤3.6 V domains; requires PCB redesign due to incompatible pin mapping and package footprint. | Choose only if IOFF is unnecessary and system voltages stay within 3.6 V - verify layout compatibility before migration. |
Compared with NTSX0102TLH and TXS0102DCUR, the NTSX2102TLH uniquely delivers dual-channel auto-direction translation with IOFF-enabled power sequencing - making it optimal for compact, mixed-voltage I²C hubs and industrial sensor aggregators where reliability and channel density are critical.
Availability
NTSX2102TLH is available at Aetrix Electronics and suitable for I²C bus translation, UART voltage bridging, GPIO expansion interfaces, and industrial sensor hub designs requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for NTSX2102TLH 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in interface and power management ICs.
The NTSX2102TLH belongs to NXP's auto-direction voltage translator product line, engineered specifically for robust, low-latency bidirectional level shifting in resource-constrained embedded systems where pin count, power efficiency, and mixed-voltage interoperability are critical.
FAQ
What is the maximum supported data rate for NTSX2102TLH?
The NTSX2102TLH achieves up to 52 Mbit/s at VCC(A) = VCC(B) = 5.0 V, as specified in Table 10 of the NXP datasheet. At lower supply combinations (e.g., 1.8 V ↔ 3.3 V), the guaranteed maximum is 40 Mbit/s. This performance enables Fast-mode Plus I²C and high-speed GPIO applications without external clocking or direction control.
Does NTSX2102TLH require external pull-up resistors?
Yes, NTSX2102TLH requires external pull-up resistors on both A-side (to VCC(A)) and B-side (to VCC(B)) I/O lines. Each A1, A2, B1, and B2 pin is open-drain, so pull-ups establish HIGH logic levels. Resistor values must be selected based on bus capacitance and speed requirements - typical values range from 2.2 kΩ to 10 kΩ.
Can NTSX2102TLH operate with asymmetric supply voltages?
Yes, NTSX2102TLH fully supports asymmetric operation: VCC(A) and VCC(B) may be set independently within 1.65 V–5.5 V (e.g., 1.8 V on A-side, 3.3 V on B-side). The device maintains bidirectional translation integrity and meets all timing specs under these conditions, as validated in Table 10's dynamic characteristics.
What is the function of the center pad on the NTSX2102TLH XSON8 package?
The center thermal pad on the NTSX2102TLH (SOT1052-2) is non-electrical - it has no silicon connection and may be left floating or soldered to GND for improved thermal dissipation and mechanical stability. Unlike the GD variant, the TL pad does not require PCB connection, allowing drop-in replacement on existing GD layouts with minimal risk.
How does the IOFF feature protect the NTSX2102TLH during partial power-down?
The IOFF circuitry in NTSX2102TLH disables outputs and blocks current flow when either VCC(A) or VCC(B) drops to 0 V. Measured IOFF leakage is ≤±2 μA per port, preventing damaging back-current from a live domain into a powered-down subsystem - a key requirement for hot-plug and low-power sleep-mode designs.
NTSX2102TLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
- Data Rate:
- 50Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN Exposed Pad
NTSX2102TLH FAQ
1.How can I place an order for NTSX2102TLH through Aetrix?
Please submit a Request for Quotation (RFQ) for NTSX2102TLH 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 NTSX2102TLH reliable?
The price and inventory of NTSX2102TLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTSX2102TLH is usually 5 days.
3.What payment methods are accepted for NTSX2102TLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTSX2102TLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTSX2102TLH?
NTSX2102TLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTSX2102TLH 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 NTSX2102TLH?
For technical support, including NTSX2102TLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTSX2102TLH requirements.
6.How does Aetrix verify that NTSX2102TLH is sourced from the original manufacturer or authorized distributors?
All NTSX2102TLH 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 NTSX2102TLH meets industry standards.
7.What is the process for return or replacement of NTSX2102TLH?
All NTSX2102TLH units undergo pre-shipment inspection (PSI). If there is an issue with NTSX2102TLH, 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 NTSX2102TLH part is unused and in its original packaging.
Return procedure for NTSX2102TLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NTSX2102TLH Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
