My Inquiry
My Account
NXP Semiconductors NTSX2102GU8X
- Part No.:
- NTSX2102GU8X
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NTSX2102GU8X.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8XQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The NTSX2102GU8X from NXP Semiconductors is a 2-bit dual-supply auto-direction-sensing voltage-level transceiver with open-drain I/O, supporting bidirectional translation between 1.65 V and 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, and IOFF partial power-down protection. It is used in I²C/SMBus bus bridging where mixed-voltage SoC peripherals interface with legacy or sensor nodes.
For engineers reviewing the NTSX2102GU8X datasheet, NTSX2102GU8X pinout, NTSX2102GU8X application, or NTSX2102GU8X equivalent, key selection criteria include its 50 Mbps max data rate, ±2 µA OFF-state leakage, 1.4 mm × 1.2 mm XQFN8 package, and compatibility with open-drain protocols requiring automatic direction detection without external control signals.
Technical Context
The NTSX2102GU8X implements a switch-type architecture using dual N-channel pass-gate transistors per channel and an edge-rate accelerator circuit that detects signal transitions and temporarily lowers output impedance (10–35 Ω) for <25 ns to improve rise/fall times. Its auto-direction sensing eliminates need for external direction control logic.
It operates across −40 °C to +85 °C with full IOFF functionality: when either VCC(A) or VCC(B) is at GND, outputs enter high-impedance state and backflow current is blocked. Inputs tolerate up to 5.5 V regardless of supply level, enabling robust interfacing with higher-voltage controllers.
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 among 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic domains |
| Max Data Rate | 50 Mbps - supports high-speed I²C Fast-mode Plus (1 Mbps) and UART interfaces with margin |
| IOFF Leakage | ±2 µA - prevents damaging backflow current during partial power-down when one supply is off |
| Propagation Delay | A↔B: 1–7 ns (typ) - ensures timing integrity in low-latency inter-chip communication |
| ESD Rating | HBM >2000 V, CDM >2000 V - meets industrial-grade robustness requirements for board-level handling |
| Operating Temp | −40 °C to +85 °C - qualified for automotive cabin and industrial control environments |
| Input Voltage Tolerance | Up to 5.5 V on all pins - allows safe connection to 5 V masters even when VCC(A)/VCC(B) are lower |
Pinout & Package
XQFN8 package: plastic extremely thin quad flat no-lead package, 1.4 mm × 1.2 mm × 0.5 mm body, 8 terminals, wettable flank terminations for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply reference for A-side I/Os and OE input - sets logic thresholds and drive strength for A1/A2 ports |
| 2, 3 | A1, A2 | Bidirectional open-drain data I/O referenced to VCC(A) - require external pull-up to VCC(A) |
| 4 | GND | Common ground reference for both supply domains and internal circuitry |
| 5 | OE | Active-HIGH output enable referenced to VCC(A) - LOW forces all I/Os into high-impedance state |
| 6, 7 | B1, B2 | Bidirectional open-drain data I/O referenced to VCC(B) - require external pull-up to VCC(B) |
| 8 | VCC(B) | Supply reference for B-side I/Os - independent of VCC(A), enabling asymmetric voltage translation |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing | Eliminates need for external direction-control signals - reduces PCB routing complexity and firmware overhead in bidirectional buses |
| IOFF partial power-down | Blocks backflow current when either VCC(A) or VCC(B) is unpowered - critical for hot-plug and power-gated subsystems |
| Edge-rate acceleration | Reduces tTLH/tTHL to ≤11 ns via transient 10–35 Ω output impedance - maintains signal integrity at 50 Mbps without external buffers |
| Wide input voltage tolerance | Accepts up to 5.5 V on all pins regardless of supply - simplifies level-shifter placement in mixed-voltage systems |
| Open-drain topology | Supports wired-AND bus architectures like I²C and SMBus - enables multi-master arbitration and shared-bus operation |
Applications
| I²C Bus Bridging | UART Interface Translation |
|---|---|
Use Scenario: Connecting a 3.3 V microcontroller's I²C port to a 1.8 V sensor node while maintaining SMBus compliance. IC Role / Device Role / Timing Role: Bidirectional voltage translator with auto-direction sensing and open-drain I/O - replaces discrete MOSFET solutions and eliminates direction-control GPIO. Use Value: Enables direct interoperability without protocol modification; IOFF prevents current leakage when sensor is powered down. | Use Scenario: Interfacing a 5.0 V industrial UART transceiver with a 2.5 V FPGA UART core. IC Role / Device Role / Timing Role: Dual-supply translating transceiver - translates logic levels while preserving signal timing and slew rate for asynchronous serial data. Use Value: Supports 50 Mbps data rate margin over standard UART speeds; 1.4 mm × 1.2 mm footprint saves space in compact modules. |
| GPIO Voltage Translation | Hot-Swappable Module Interface |
Use Scenario: Level-shifting GPIO lines between a 3.3 V host processor and 1.8 V peripheral ASIC in a battery-powered wearable. IC Role / Device Role / Timing Role: Low-leakage (±2 µA) bidirectional translator - provides rail-to-rail compatible signaling with minimal quiescent current impact. Use Value: Extends battery life via ultra-low IOFF current; small XQFN8 package fits tight layout constraints. | Use Scenario: Enabling hot-swap capability between a powered-backplane (3.3 V) and removable daughter card (1.8 V) in telecom equipment. IC Role / Device Role / Timing Role: Partial-power-down transceiver - isolates domains during insertion/removal to prevent bus contention and supply collapse. Use Value: IOFF blocks backfeed when daughter card is unpowered; OE pin allows software-controlled isolation before physical removal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DSGR | TI device uses different edge-acceleration architecture; max data rate 60 Mbps; requires external pull-ups on both sides | Optimized for higher-speed I²C and SPI; lacks same IOFF leakage spec (±5 µA vs ±2 µA) | Select TXS0102DSGR only if >50 Mbps is required and tighter leakage is not critical |
| PCA9306DCUR | NXP part with manual direction control (DIR pin); no auto-sensing; 400 kHz I²C-optimized; smaller 2.5 mm × 2.5 mm VSSOP8 package | Suitable for fixed-direction, low-speed I²C; not appropriate for dynamic bidirectional protocols like SMBus Alert Response | Choose PCA9306DCUR for cost-sensitive, low-speed designs where direction is static and board area is less constrained |
Compared with TXS0102DSGR and PCA9306DCUR, the NTSX2102GU8X uniquely combines auto-direction sensing, 50 Mbps capability, ±2 µA IOFF leakage, and 1.4 mm × 1.2 mm XQFN8 packaging - making it optimal for space-constrained, mixed-voltage I²C/SMBus systems requiring zero-GPIO direction management and robust partial power-down behavior.
Availability
NTSX2102GU8X is available at Aetrix Electronics and suitable for I²C bus bridging, UART interface translation, GPIO voltage translation, and hot-swappable module interface applications requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for NTSX2102GU8X 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, with leadership in interface, power management, and RF technologies.
The NTSX2102GU8X belongs to NXP's auto-direction-sensing level translator product line, designed specifically for eliminating external direction-control logic in open-drain bidirectional buses such as I²C, SMBus, and 1-Wire while maintaining low power, small footprint, and robust partial power-down behavior.
FAQ
What is the maximum supported data rate for the NTSX2102GU8X?
The NTSX2102GU8X supports up to 50 Mbps under recommended operating conditions (e.g., VCC(A) = 5.0 V, VCC(B) = 5.0 V). Measured data rates vary with supply voltage combinations: 18 Mbps at 1.8 V/1.8 V, 32 Mbps at 2.5 V/2.5 V, 40 Mbps at 3.3 V/3.3 V, and 52 Mbps at 5.0 V/5.0 V. The NTSX2102GU8X achieves this via integrated edge-rate acceleration circuitry that reduces transition times without external components.
Does the NTSX2102GU8X require external pull-up resistors?
Yes, the NTSX2102GU8X requires external pull-up resistors on both A-side and B-side I/O lines: A1/A2 must be pulled up to VCC(A), and B1/B2 must be pulled up to VCC(B). The magnitude of each resistor is application-dependent and must ensure VOL ≤ 0.4 V at 6 mA sink current while meeting timing requirements. Typical values range from 1 kΩ to 10 kΩ depending on bus capacitance and speed.
How does the IOFF feature function in the NTSX2102GU8X?
The IOFF feature in the NTSX2102GU8X disables output circuitry and blocks backflow current when either VCC(A) or VCC(B) is at GND. This occurs automatically - no OE assertion needed. Measured IOFF leakage is ±2 µA across −40 °C to +85 °C. This protects powered subsystems from damage during partial power-down, hot-swap events, or system sleep states, and is integral to the NTSX2102GU8X's architecture.
What package type is used for the NTSX2102GU8X?
The NTSX2102GU8X uses the XQFN8 package (SOT1309-1), a plastic extremely thin quad flat no-lead package measuring 1.4 mm × 1.2 mm × 0.5 mm with 8 terminals. It features wettable flanks for reliable automated optical inspection and solder-joint quality verification. This package is distinct from the larger XQFN8 (SOT902-2) and XSON8 (SOT996-2) variants in the NTSX2102 family.
Can the NTSX2102GU8X translate between 5.0 V and 1.8 V domains?
Yes, the NTSX2102GU8X fully supports bidirectional translation between 5.0 V and 1.8 V domains: VCC(A) can be set to 5.0 V while VCC(B) is set to 1.8 V (or vice versa). Both supplies operate independently within 1.65 V–5.5 V. Input pins tolerate up to 5.5 V regardless of supply level, ensuring safe operation when higher-voltage signals drive lower-voltage ports. This capability is explicitly validated in the NTSX2102GU8X datasheet's recommended operating conditions and function table.
NTSX2102GU8X 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-XFQFN
NTSX2102GU8X FAQ
1.How can I place an order for NTSX2102GU8X through Aetrix?
Please submit a Request for Quotation (RFQ) for NTSX2102GU8X 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 NTSX2102GU8X reliable?
The price and inventory of NTSX2102GU8X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTSX2102GU8X is usually 5 days.
3.What payment methods are accepted for NTSX2102GU8X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTSX2102GU8X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTSX2102GU8X?
NTSX2102GU8X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTSX2102GU8X 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 NTSX2102GU8X?
For technical support, including NTSX2102GU8X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTSX2102GU8X requirements.
6.How does Aetrix verify that NTSX2102GU8X is sourced from the original manufacturer or authorized distributors?
All NTSX2102GU8X 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 NTSX2102GU8X meets industry standards.
7.What is the process for return or replacement of NTSX2102GU8X?
All NTSX2102GU8X units undergo pre-shipment inspection (PSI). If there is an issue with NTSX2102GU8X, 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 NTSX2102GU8X part is unused and in its original packaging.
Return procedure for NTSX2102GU8X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NTSX2102GU8X 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…
