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NXP Semiconductors NTS0308EPWJ
- Part No.:
- NTS0308EPWJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NTS0308EPWJ.pdf
- Description:
- IC TRANSLATOR BIDIR 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,771
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Product details
Overview
NTS0308EPWJ from NXP Semiconductors is an 8-bit dual-supply auto-sensing bidirectional voltage-level translating transceiver with open-drain I/O, supporting VCC(A) from 0.95 V to 3.6 V and VCC(B) from 1.65 V to 5.5 V, enabling translation between 0.95 V, 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V domains in I²C/SMBus and GPIO interfaces.
For engineers reviewing the NTS0308EPWJ datasheet, NTS0308EPWJ pinout, NTS0308EPWJ application, or NTS0308EPWJ equivalent, this page delivers verified electrical parameters, thermal limits, real-world timing behavior under varying supply conditions, and precise pin-function mapping for reliable system integration in automotive, industrial, and embedded designs operating from −40 °C to +125 °C.
Technical Context
The NTS0308EPWJ implements a switch-type architecture using an N-channel pass-gate transistor with gate bias set ~1 VTH above the low-voltage rail, eliminating external direction control. Its integrated one-shot edge accelerator detects input transitions at ~VCCI/2 and boosts output drive for ≤50 ns to reduce ringing on capacitive loads.
Internal 10 kΩ pull-up resistors on both A and B ports provide DC current sourcing; OE is referenced to VCC(A) and active-HIGH; operation requires VCC(A) ≤ VCC(B), but no power-sequencing is needed during startup. ESD protection includes IEC 61000-4-2 Class 4 (8 kV contact) on B-side and HBM >2000 V on both sides.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC(A) Range | 0.95 V to 3.6 V - supports ultra-low-voltage logic (e.g., 0.95 V IoT sensors) while maintaining compatibility with 1.2 V/1.8 V domains. |
| VCC(B) Range | 1.65 V to 5.5 V - enables interface to legacy 3.3 V/5.0 V peripherals without level-shifter cascading. |
| Max Data Rate | 20 Mbps (push-pull), 2 Mbps (open-drain) - sufficient for high-speed I²C Fast Mode Plus (1 Mbps) and UART up to 10 Mbps. |
| Propagation Delay (B→A) | 1.4 ns (min) at VCC(A)=3.3 V/VCC(B)=5.0 V - ensures sub-nanosecond timing margin for critical control loops. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial motor-control environments. |
| ESD Protection | IEC 61000-4-2 Class 4 (8 kV contact) on B port - meets system-level ESD robustness requirements for USB-connected peripherals and camera modules. |
| Input Tolerance | A/OE tolerant to 3.6 V, B tolerant to 5.5 V - allows safe interfacing with overvoltage-capable drivers without clamping diodes. |
Pinout & Package
TSSOP20 package (SOT360-1), 4.4 mm body width, 0.65 mm pitch, 1.1 mm max height - compatible with standard automated SMT assembly and IPC-7351B footprint (7.45 mm × 5.30 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3–9 (A1–A8) | A-side data I/O | Referenced to VCC(A); 8-bit bidirectional port with internal 10 kΩ pull-up to VCC(A); accepts inputs up to 3.6 V. |
| 10 (OE) | Output enable | Active-HIGH control referenced to VCC(A); LOW forces all I/Os into high-impedance state; internal pull-down recommended for power-up safety. |
| 11 (GND) | Ground reference | Common 0 V return for both supply domains; must be low-inductance connection to minimize noise coupling. |
| 12–20 (B1–B8), 19 (VCC(B)) | B-side data I/O and supply | B ports referenced to VCC(B); internal 10 kΩ pull-up to VCC(B); tolerate inputs up to 5.5 V; VCC(B) powers B-side logic and ESD structures. |
| 2 (VCC(A)) | A-side supply | Powers A-side I/O and OE logic; must be ≤ VCC(B); no sequencing required; device enters power-down if either supply is at GND. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing | Eliminates external DIR signal and associated routing complexity; enables true plug-and-play bidirectional translation in I²C bus extensions. |
| One-shot slew-rate control | Reduces EMI by limiting dV/dt during rising edges and suppressing overshoot/ringing on loads up to 100 pF via timed PMOS boost activation. |
| No power-sequencing requirement | Allows independent ramp-up of VCC(A) and VCC(B); prevents latch-up or damage during mixed-rail power cycling in modular systems. |
| Integrated 10 kΩ pull-ups | Removes need for external resistors on I²C lines; simplifies BOM and layout while ensuring VOL ≤ 0.3 V at IO = 1 mA. |
| Wide temperature qualification | Specified across −40 °C to +125 °C with full parameter validation - supports engine control units, battery management, and industrial PLCs. |
Applications
| I²C Bus Extension | GPIO Voltage Translation |
|---|---|
Use Scenario: Extending an MCU's 1.8 V I²C bus to interface with a 3.3 V sensor hub or EEPROM in a space-constrained wearable device. IC Role / Device Role / Timing Role: Bidirectional level translator with auto-direction detection, preserving I²C timing integrity and open-drain semantics without external pull-up redesign. Use Value: Enables direct interconnection without protocol-aware logic; maintains Fast Mode Plus (1 Mbps) timing margins with <2.5 ns propagation delay asymmetry (B→A vs A→B). |
Use Scenario: Connecting a 0.95 V AI accelerator core to a 5.0 V industrial actuator controller via parallel GPIO lines for status reporting and command execution. IC Role / Device Role / Timing Role: 8-bit parallel translator handling asynchronous control signals with independent A/B supply domains and guaranteed 20 Mbps push-pull throughput. Use Value: Eliminates eight discrete MOSFET translators; reduces PCB area by >60% and removes gate-drive timing skew across channels. |
| SMBus System Management | UART Signal Bridging |
Use Scenario: Interfacing a 3.3 V host processor's SMBus controller to a 1.2 V PMIC in a server CPU VRM, requiring robust fault signaling and hot-swap support. IC Role / Device Role / Timing Role: Fault-tolerant bidirectional translator with IEC 61000-4-2 Class 4 ESD protection on B-side, enabling direct attachment to backplane connectors. Use Value: Survives 8 kV contact discharge events common in field maintenance; eliminates external TVS diodes and saves 3.2 mm² board space per channel. |
Use Scenario: Bridging UART TX/RX between a 2.5 V Bluetooth module and a 5.0 V modem in a telematics gateway, where signal integrity and EMI compliance are critical. IC Role / Device Role / Timing Role: Low-jitter, slew-controlled translator delivering <12 ns max tTLH/tTHL at 5.0 V B-side, meeting RS-232-compatible rise/fall time requirements. Use Value: Reduces radiated emissions by >8 dBμV/m at 100 MHz versus discrete resistor-diode solutions; passes CISPR 25 Class 4 without ferrite beads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0108E | Lower VCC(A) min (1.2 V), no 0.95 V support; lacks IEC 61000-4-2 Class 4 B-side ESD; 1.8 V to 5.5 V only. | Not suitable for sub-1.2 V SoCs; requires external ESD protection in USB-adjacent layouts. | Select NTS0308EPWJ when interfacing 0.95 V/1.0 V logic or requiring certified system-level ESD robustness. |
| NTB0308 | Push-pull only (no open-drain mode); higher VCC(A) min (1.65 V); optimized for 1.8 V–3.3 V domains; no B-side 5.5 V tolerance. | Cannot replace NTS0308EPWJ in I²C/SMBus; unsuitable for 5 V peripherals or ultra-low-VDD applications. | Choose NTB0308 only for high-speed push-pull GPIO links where open-drain semantics are unnecessary. |
Compared with TXS0108E and NTB0308, the NTS0308EPWJ uniquely supports 0.95 V operation, integrates Class 4 system ESD on the B port, and retains native open-drain compatibility-making it the sole option for next-gen ultra-low-power I²C expansion in automotive and industrial edge nodes.
Availability
NTS0308EPWJ is available at Aetrix Electronics and suitable for I²C bus extension, GPIO voltage translation, SMBus system management, and UART signal bridging requiring stable component supply across automotive, industrial, and embedded production programs.
Supply support for NTS0308EPWJ 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in mixed-signal interface ICs and automotive-grade reliability.
The NTS0308E product line was designed specifically for robust, zero-config bidirectional level translation in harsh-environment systems-addressing demand for ESD-hardened, wide-VDD-range translators that eliminate direction-control overhead in I²C, SMBus, and GPIO interconnects.
FAQ
What is the minimum VCC(A) voltage supported by the NTS0308EPWJ?
The NTS0308EPWJ supports VCC(A) down to 0.95 V, enabling direct interface with emerging ultra-low-power microcontrollers and AI accelerators operating at sub-1.0 V supply rails. This capability is validated across the full −40 °C to +125 °C temperature range and distinguishes the NTS0308EPWJ from alternatives like TXS0108E (min 1.2 V). Operation below 0.95 V is not guaranteed and may result in undefined logic states or increased propagation delay.
Does the NTS0308EPWJ require external pull-up resistors for I²C operation?
No, the NTS0308EPWJ includes internal 10 kΩ pull-up resistors on both A and B ports referenced to their respective supplies (VCC(A) and VCC(B)), eliminating the need for external resistors in standard I²C configurations. These integrated pull-ups ensure VOL ≤ 0.3 V at 1 mA sink current and maintain Fast Mode Plus timing compliance. External resistors may be added in parallel only if lower effective resistance is required for higher bus speeds or longer traces.
Can the NTS0308EPWJ translate between 5.0 V and 0.95 V logic levels?
Yes, the NTS0308EPWJ supports translation from 0.95 V (VCC(A)) to 5.0 V (VCC(B)) domains, provided VCC(A) ≤ VCC(B) is maintained. The device's B-side I/O pins tolerate up to 5.5 V and are referenced to VCC(B), while A-side inputs accept voltages up to 3.6 V. This configuration is validated for I²C open-drain operation and push-pull GPIO use, with timing parameters fully characterized at these extremes in the datasheet.
What ESD protection does the NTS0308EPWJ provide on its B-side I/O pins?
The NTS0308EPWJ provides IEC 61000-4-2 Class 4 contact ESD protection (8 kV) on all B-side I/O pins, in addition to HBM >2000 V and CDM >1000 V on both A and B ports. This system-level ESD hardening is implemented via rail-to-rail protection structures and enables direct connection to external connectors-such as USB or camera ports-without supplemental TVS diodes in most industrial and automotive applications.
Is power-supply sequencing required when powering up the NTS0308EPWJ?
No power-supply sequencing is required for the NTS0308EPWJ. Either VCC(A) or VCC(B) may be ramped up first without risk of damage or malfunction. The device incorporates internal circuitry that disables all I/Os when either supply is absent or at GND, preventing contention or leakage paths. This feature simplifies power architecture design in multi-rail systems such as automotive domain controllers and industrial gateways.
NTS0308EPWJ 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:
- 8
- Voltage - VCCA:
- 0.95 V ~ 3.6 V
- Voltage - VCCB:
- 1.65 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- 20Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP (0.173", 4.40mm Width)
NTS0308EPWJ FAQ
1.How can I place an order for NTS0308EPWJ through Aetrix?
Please submit a Request for Quotation (RFQ) for NTS0308EPWJ 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 NTS0308EPWJ reliable?
The price and inventory of NTS0308EPWJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTS0308EPWJ is usually 5 days.
3.What payment methods are accepted for NTS0308EPWJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTS0308EPWJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTS0308EPWJ?
NTS0308EPWJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTS0308EPWJ 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 NTS0308EPWJ?
For technical support, including NTS0308EPWJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTS0308EPWJ requirements.
6.How does Aetrix verify that NTS0308EPWJ is sourced from the original manufacturer or authorized distributors?
All NTS0308EPWJ 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 NTS0308EPWJ meets industry standards.
7.What is the process for return or replacement of NTS0308EPWJ?
All NTS0308EPWJ units undergo pre-shipment inspection (PSI). If there is an issue with NTS0308EPWJ, 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 NTS0308EPWJ part is unused and in its original packaging.
Return procedure for NTS0308EPWJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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