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NXP Semiconductors NVT2008BQ,115
- Part No.:
- NVT2008BQ,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
NVT2008BQ,115.pdf
- Description:
- IC TRANSLATOR BIDIR 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:228
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Product details
Overview
NVT2008BQ,115 from NXP Semiconductors is an 8-bit bidirectional voltage-level translator IC for open-drain and push-pull applications, supporting Vref(A) from 1.0 V to 3.6 V and Vref(B) from 1.8 V to 5.5 V, with <1.5 ns max propagation delay, 3.5 Ω typical ON-state resistance, and 5 V-tolerant I/Os. It enables seamless level translation between low-voltage processors (e.g., 1.2 V/1.8 V cores) and higher-voltage peripherals (e.g., 3.3 V/5 V I²C buses) without direction control.
For engineers reviewing the NVT2008BQ,115 datasheet, NVT2008BQ,115 pinout, NVT2008BQ,115 application, or NVT2008BQ,115 equivalent, this page delivers verified electrical parameters, DHVQFN20 package layout, real-world I²C and mixed-voltage interface use cases, and two confirmed alternative parts with documented functional differences.
Technical Context
The NVT2008BQ,115 implements a passive MOSFET-based clamping architecture with symmetrical An–Bn channel switches, enabling true bidirectional translation without direction pins. Its EN input is referenced to Vref(B), requiring VI(EN) ≥ Vref(A) + 0.6 V and Vref(B) ≥ Vref(A) + 1 V for reliable operation.
Each channel operates as a low-impedance pass switch when enabled (EN = HIGH), with Ron ≤ 7.5 Ω at 15 mA and 4.5 V EN, and transitions to high-impedance isolation when EN = LOW. The device supports transmission speeds <33 MHz on 50 pF loads with 197 Ω pull-ups in open-drain configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Vref(A) Range | 1.0 V to 3.6 V - sets low-side logic threshold and maximum An output voltage; must be ≥1 V below Vref(B) for stable clamping. |
| Vref(B) Range | 1.8 V to 5.5 V - powers high-side interface and EN input; defines Bn output swing up to Vpu(D) (e.g., 3.3 V or 5 V). |
| Max Propagation Delay | <1.5 ns - ensures timing integrity in high-speed I²C, SMBus, and GPIO translation at ≤33 MHz with 50 pF load. |
| ON-State Resistance | 3.5 Ω typical - minimizes signal distortion and voltage drop across channels during active translation. |
| I/O Voltage Tolerance | 5 V tolerant - allows direct connection to 5 V buses while operating from sub-2 V core supplies without external protection. |
| ESD Protection | 4 kV HBM / 1000 V CDM - protects downstream 1.0–1.8 V logic from system-level ESD events. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and automotive under-hood environments with no derating. |
Pinout & Package
DHVQFN20 package: 2.5 × 4.5 × 0.85 mm body, 20-terminal no-lead thermal-enhanced quad flat; exposed thermal pad (pin 21 not used); moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Common 0 V return for both A- and B-side logic; must be low-inductance connection to minimize noise coupling. |
| EN (Pin 20) | Enable control input | Active-HIGH enable referenced to Vref(B); must be pulled to Vref(B) via ≥200 kΩ resistor to ensure defined state during power-up. |
| VREFA (Pin 2) | Low-voltage reference supply | Bias source for An ports; sets clamp threshold and maximum An output voltage; connects directly to processor core rail. |
| VREFB (Pin 19) | High-voltage reference supply | Bias source for Bn ports and EN input; defines Bn output swing and enables internal switch biasing; requires 0.1 µF decoupling. |
| A1–A8 (Pins 3–10) | Low-voltage side I/O | Connect to 1.0–3.6 V domain (e.g., CPU GPIO, I²C SDA/SCL); internally clamped to VREFA when LOW. |
| B1–B8 (Pins 11–18) | High-voltage side I/O | Connect to 1.8–5.5 V domain (e.g., sensor I/O, PMIC interface); pulled to Vpu(D) via external resistors in open-drain mode. |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables automatic bidirectional translation in I²C, SMBus, and GPIO interfaces without MCU firmware overhead or PCB routing for DIR signals. |
| Flow-through pinout | Alternating A/B pin assignment (A1/B1, A2/B2, ..., A8/B8) simplifies PCB trace routing with minimal layer changes or vias. |
| Lock-up free operation | Guaranteed immunity to latch-up under all valid voltage combinations and switching sequences per JESD78 Class II. |
| 5 V-tolerant I/Os | Allows direct interfacing with legacy 5 V peripherals while powered from modern 1.0–1.8 V core supplies-no external level-shifting components needed. |
| High-impedance disable state | EN = LOW places all An/Bn pins in Hi-Z, enabling bus sharing, hot-swap capability, and power-isolated subsystem control. |
Applications
| I²C Bus Translation | Multi-Rail Processor Interface |
|---|---|
|
Use Scenario: Connecting a 1.8 V application processor to a 3.3 V temperature sensor over I²C. IC Role / Device Role / Timing Role: Bidirectional level translator on SDA/SCL lines; maintains I²C timing compliance with <1.5 ns delay and supports standard/fast-mode speeds. Use Value: Eliminates need for discrete FET translators or direction-controlled buffers, reducing BOM count and layout area by >40%. |
Use Scenario: Interfacing a 1.2 V FPGA I/O bank to multiple 2.5 V, 3.3 V, and 5 V peripheral modules. IC Role / Device Role / Timing Role: Single-chip 8-channel translator enabling simultaneous voltage domain bridging with independent Vref(A)/Vref(B) configuration per group. Use Value: Supports mixed-voltage board design without custom gate arrays or multiple discrete solutions-reduces signal integrity risk from impedance mismatches. |
| Hot-Swappable Module Interface | Legacy Peripheral Integration |
|
Use Scenario: Adding/removing a 5 V CAN transceiver module while main 1.5 V SoC remains powered. IC Role / Device Role / Timing Role: Translator placed between SoC GPIO and module control lines; EN pin controlled by module presence detection signal. Use Value: Enables safe hot-plug operation by isolating domains before insertion-prevents back-powering and voltage contention during connect/disconnect. |
Use Scenario: Integrating a 5 V EEPROM into a new 1.8 V microcontroller design without redesigning the memory interface. IC Role / Device Role / Timing Role: Translates address/data/control lines between MCU and EEPROM; handles 5 V-tolerant inputs while driving 1.8 V outputs. Use Value: Extends life of existing 5 V peripherals in next-gen low-voltage systems-avoids costly requalification and firmware porting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA9306DCUR | 2-channel, 1.2–3.3 V / 1.8–5.5 V range; 6.5 Ω Ron; no EN pin; fixed 2.5 V internal reference for Vref(A). | Lacks enable control and flexible Vref(A) programming; limited to dual-channel use; unsuitable for 1.0 V core interfaces. | Select PCA9306DCUR only for simple 2-line I²C translation where EN control and sub-1.2 V support are unnecessary. |
| TXS0108EPRJR | 8-channel, 1.2–3.6 V / 1.65–5.5 V; 10 Ω Ron; auto-direction sensing; integrated 10 kΩ pull-ups on B-side. | Higher Ron increases propagation delay (>3 ns); auto-direction circuit adds latency; built-in pull-ups limit external bias flexibility. | Choose TXS0108EPRJR when automatic direction detection is critical and 10 Ω Ron is acceptable; avoid when minimizing delay or using custom pull-up values. |
Compared with PCA9306DCUR and TXS0108EPRJR, the NVT2008BQ,115 offers lower Ron (3.5 Ω), guaranteed <1.5 ns delay, full 1.0 V Vref(A) support, and explicit EN control-making it optimal for high-speed, low-voltage, and power-gated mixed-domain designs.
Availability
NVT2008BQ,115 is available at Aetrix Electronics and suitable for I²C bus translation, multi-rail processor interfacing, hot-swappable module integration, and legacy peripheral integration requiring stable component supply across industrial, computing, and embedded applications.
Supply support for NVT2008BQ,115 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 markets, with deep expertise in interface IP and mixed-signal design.
The NVT2008 series belongs to NXP's voltage translation product line, engineered specifically for robust, pin-efficient bridging between disparate voltage domains in space-constrained, high-reliability embedded systems.
FAQ
What voltage ranges does the NVT2008BQ,115 support on its A-side and B-side?
The NVT2008BQ,115 supports Vref(A) from 1.0 V to 3.6 V and Vref(B) from 1.8 V to 5.5 V. For reliable operation, Vref(B) must be at least 1 V higher than Vref(A). This enables translation from 1.0 V/1.2 V/1.8 V cores to 3.3 V or 5 V peripherals. The NVT2008BQ,115 datasheet specifies these ranges in Table 10 and Figure 1.
Does the NVT2008BQ,115 require external pull-up resistors, and if so, how are they selected?
Yes, external pull-up resistors are required on both A- and B-side I/Os for open-drain operation. Values depend on driver sink current, bus capacitance, and target speed. Table 6–8 in the NVT2008BQ,115 datasheet provides minimum RPU values-for example, 976 Ω on A-side and 976 Ω on B-side for 1.0 V ↔ 1.8 V translation with 3 mA drive strength.
Can the NVT2008BQ,115 be used with push-pull drivers, and what design considerations apply?
Yes, the NVT2008BQ,115 supports push-pull drivers on either side, but outputs must be 3-stateable or unidirectional to prevent contention. When both sides use push-pull, direction control (e.g., via MCU GPIO) is required to avoid HIGH-to-LOW conflicts. The NVT2008BQ,115 functional description in Section 7.2 confirms this requirement.
What is the role of the EN pin on the NVT2008BQ,115, and how must it be biased?
The EN pin enables or disables the NVT2008BQ,115's translation function: HIGH enables bidirectional conduction; LOW forces all I/Os into high-impedance. EN must be referenced to Vref(B) and pulled HIGH via ≥200 kΩ resistor to Vref(B); it is not compatible with Vref(A)-domain logic. This is specified in Table 3 and Section 6.1 of the NVT2008BQ,115 datasheet.
How does the NVT2008BQ,115 handle ESD protection, and what standards does it meet?
The NVT2008BQ,115 exceeds 4 kV HBM (JESD22-A114) and 1000 V CDM (JESD22-C101) ESD ratings, protecting downstream low-voltage devices from system-level discharge events. This performance is achieved through integrated clamping diodes and process-hardened I/O structures-verified in characterization testing and documented in Section 2 of the NVT2008BQ,115 product data sheet.
NVT2008BQ,115 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:
- 8
- Voltage - VCCA:
- 1 V ~ 3.6 V
- Voltage - VCCB:
- 1.8 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VFQFN Exposed Pad
NVT2008BQ,115 FAQ
1.How can I place an order for NVT2008BQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NVT2008BQ,115 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 NVT2008BQ,115 reliable?
The price and inventory of NVT2008BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NVT2008BQ,115 is usually 5 days.
3.What payment methods are accepted for NVT2008BQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NVT2008BQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NVT2008BQ,115?
NVT2008BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NVT2008BQ,115 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 NVT2008BQ,115?
For technical support, including NVT2008BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NVT2008BQ,115 requirements.
6.How does Aetrix verify that NVT2008BQ,115 is sourced from the original manufacturer or authorized distributors?
All NVT2008BQ,115 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 NVT2008BQ,115 meets industry standards.
7.What is the process for return or replacement of NVT2008BQ,115?
All NVT2008BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with NVT2008BQ,115, 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 NVT2008BQ,115 part is unused and in its original packaging.
Return procedure for NVT2008BQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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