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NXP Semiconductors GTL2003BQ,118
- Part No.:
- GTL2003BQ,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2003BQ,118.pdf
- Description:
- IC TRANSLATOR BIDIR 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
GTL2003BQ,118 from NXP Semiconductors is an 8-bit bidirectional NMOS pass-transistor voltage translator enabling seamless level shifting between 0.8 V and 5.0 V buses without direction control. It features 6.5 Ω typical ON-state resistance, <5.5 ns propagation delay, and operates across −40 °C to +85 °C. Used in I²C-bus interface translation between low-voltage processors (e.g., 1.2 V/1.8 V) and 3.3 V/5.0 V peripherals.
For engineers reviewing the GTL2003BQ,118 datasheet, GTL2003BQ,118 pinout, GTL2003BQ,118 application, or GTL2003BQ,118 equivalent, key selection criteria include bidirectional operation without direction pin, reference voltage programmability via SREF/DREF, flow-through pinout for PCB routing, ESD robustness (>2000 V HBM), and compatibility with GTL, LVTTL, TTL, and CMOS logic families.
Technical Context
The GTL2003BQ,118 implements a Gunning Transceiver Logic Transceiver Voltage Clamp (GTL-TVC) architecture using eight matched NMOS pass transistors plus one reference transistor (SREF/DREF/GREF). Translation direction is determined by relative voltage levels on Sn and Dn ports, with GREF biased ≥1.5 V above SREF for optimal clamping.
It operates without power supply or pull-up resistors on the low-voltage side when SREF is set between 0.8 V and (VDD1 − 1.5 V); Dn ports are pulled to VDD1 externally, while Sn outputs clamp to SREF. All transistors share identical electrical characteristics, ensuring minimal inter-channel deviation in Ron and propagation delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit bidirectional voltage translator with no direction pin |
| ON-state resistance (Ron) | 6.5 Ω typical at VGREF = 4.5 V; enables low-voltage-drop signal pass |
| Propagation delay | 1.5 ns typical (tPLH/tPHL); supports >200 MHz I²C and GTL bus speeds |
| Voltage translation range | 0.8 V ↔ 5.0 V bidirectional; covers GTL, LVTTL, TTL, and CMOS logic levels |
| ESD protection | 2000 V HBM (JESD22-A114), 1000 V CDM (JESD22-C101); protects downstream 0.8 V ICs |
| Operating temperature | −40 °C to +85 °C; qualified for industrial embedded and processor I/O applications |
| Input tolerance | 5 V tolerant on all Sn/Dn pins; allows direct interfacing with 5 V systems |
Pinout & Package
DHVQFN20 package: plastic dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; body 2.5 × 4.5 × 0.85 mm; exposed center pad for thermal and ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Must be connected to system ground; exposed pad requires soldering to PCB thermal pad with vias |
| SREF (Pin 2) | Reference source | Sets maximum output voltage on Sn side; determines low-voltage rail (e.g., 1.2 V, 1.8 V) |
| S1–S8 (Pins 3–10) | Low-voltage I/O port | Bidirectional data path for sub-2.5 V logic (e.g., CPU core I/O) |
| D1–D8 (Pins 11–18) | High-voltage I/O port | Bidirectional data path for 3.3 V/5.0 V peripherals (e.g., I²C slave devices) |
| DREF (Pin 19) | Reference drain | Connected to VDD1 via 200 kΩ pull-up; sets gate bias for translation control |
| GREF (Pin 20) | Reference gate | Internally tied to DREF; must be ≥1.5 V above SREF for stable clamping |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bidirectional translation on shared I²C-bus lines without external control logic |
| Flow-through pinout | Pins S1–S8 and D1–D8 arranged opposite each other (Pins 3–10 vs. 11–18) for straight PCB trace routing |
| Matched transistor array | All eight Sn/Dn pairs and reference transistor fabricated identically-ensures <100 mV inter-channel voltage deviation |
| Hot-insertion support | No power supply needed; prevents latch-up during live board insertion or hot-swap events |
| ESD-hardened design | Exceeds JEDEC JESD22-A114 (2000 V HBM) and JESD22-C101 (1000 V CDM) standards |
Applications
| I²C-Bus Level Translation | Processor Core Interface |
|---|---|
Use Scenario: Connecting a 1.2 V ARM Cortex-M microcontroller I²C port to 3.3 V sensors and EEPROMs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp translating SDA/SCL signals without direction control or timing skew. Use Value: Eliminates need for two separate unidirectional translators or GPIO-controlled direction logic; maintains I²C timing integrity with <5.5 ns max delay. | Use Scenario: Interfacing a 0.8 V ASIC core output to legacy 5 V peripheral logic in test equipment. IC Role / Device Role / Timing Role: Low-voltage translator protecting sub-1.0 V outputs from 5 V bus contention and ESD. Use Value: Provides 5 V tolerant inputs and clamped Sn-side outputs at 0.8 V, enabling safe migration to advanced-node processors. |
| GTL/GTL+ to LVTTL Conversion | Multi-Rail System Integration |
Use Scenario: Adapting GTL+ signaling (1.2 V swing) from high-speed memory controllers to LVTTL (3.3 V) FPGA configuration interfaces. IC Role / Device Role / Timing Role: Passive NMOS clamp translating differential-like GTL logic into single-ended LVTTL-compatible levels. Use Value: Delivers 6.5 Ω Ron and <250 ps propagation delay-preserves signal edge rates critical for DDR timing margins. | Use Scenario: Enabling communication between 1.5 V SoC, 2.5 V PMIC, and 5 V display controller in automotive infotainment head units. IC Role / Device Role / Timing Role: Eight independent bidirectional channels supporting mixed-voltage subsystem interconnect. Use Value: Single-package solution replaces discrete MOSFET arrays-reduces BOM count, layout area, and channel-to-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NVT2003DP,118 | Lower Ron (4 Ω typ), but requires VCC supply; supports 0.8 V to 3.3 V only | Limited to ≤3.3 V high-side; not suitable for 5 V tolerant designs | Select when 5 V tolerance is unnecessary and lower Ron justifies added supply rail |
| PCA9306DC,118 | Auto-direction sensing; requires 1.2 V–3.3 V Vref and 1.65 V–5.5 V VCCA/VCCB; higher Ron (7 Ω) | Supports automatic bidirectional mode but adds complexity in biasing and noise sensitivity | Prefer for I²C applications where auto-direction eliminates external resistor networks |
Compared with NVT2003DP,118 and PCA9306DC,118, the GTL2003BQ,118 uniquely delivers 5 V tolerance, zero-supply operation, and guaranteed 0.8 V–5.0 V translation range-making it optimal for industrial and legacy-system upgrades requiring robustness and simplicity.
Availability
GTL2003BQ,118 is available at Aetrix Electronics and suitable for industrial embedded systems, automotive infotainment interfaces, and high-reliability I²C-bus applications requiring stable component supply and long-term lifecycle support.
Supply support for GTL2003BQ,118 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The GTL2003BQ,118 belongs to NXP's GTL-TVC family of passive voltage translators, designed specifically for low-latency, high-reliability level-shifting in processor I/O, memory subsystems, and multi-rail digital interfaces.
FAQ
Does the GTL2003BQ,118 require a power supply to operate?
No, the GTL2003BQ,118 operates without any VCC or VDD supply-it relies solely on external pull-up resistors on the Dn side and the SREF reference voltage. This eliminates power rail dependencies and prevents latch-up, making GTL2003BQ,118 ideal for hot-plug and low-power standby scenarios where supply sequencing is challenging.
What is the maximum recommended voltage difference between SREF and DREF for reliable operation of the GTL2003BQ,118?
The GTL2003BQ,118 requires GREF (internally tied to DREF) to be at least 1.5 V higher than SREF for optimal clamping performance. Exceeding this margin ensures stable ON-state conduction and predictable VOL (<350 mV). The absolute maximum voltage on SREF is +7.0 V per datasheet limiting values, but practical operation stays within 0.8 V to (VDREF − 1.5 V).
Can the GTL2003BQ,118 be used for unidirectional voltage translation?
Yes-the GTL2003BQ,118 supports both unidirectional up-translation (low-to-high) and down-translation (high-to-low) by configuring pull-up placement and reference biasing. For down-translation, only Dn-side pull-ups are needed; for up-translation, pull-ups are required on the high-voltage side to achieve full logic HIGH. GTL2003BQ,118 retains its 6.5 Ω Ron and ESD protection in either mode.
How does the GTL2003BQ,118 handle ESD protection on the low-voltage side?
The GTL2003BQ,118 provides inherent ESD protection exceeding 2000 V HBM on all Sn and Dn pins, shielding sensitive sub-1.0 V processor I/O from system-level transients. Its NMOS clamp structure shunts ESD current through controlled paths to GND, and the matched transistor layout ensures uniform protection across all eight channels-critical for I²C-bus reliability where multiple lines share common return paths.
Is the exposed thermal pad on the GTL2003BQ,118 package electrically connected to GND?
Yes-the exposed center pad of the DHVQFN20 package for GTL2003BQ,118 is internally connected to GND (Pin 1). It must be soldered to a corresponding PCB thermal pad with thermal vias to ensure proper electrical grounding, heat dissipation, and mechanical stability. Omitting this connection risks degraded ESD performance, increased junction temperature, and potential functional failure under sustained load.
GTL2003BQ,118 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:
- 0.8 V ~ 5.5 V
- Voltage - VCCB:
- 0.8 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain
- 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
GTL2003BQ,118 FAQ
1.How can I place an order for GTL2003BQ,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2003BQ,118 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 GTL2003BQ,118 reliable?
The price and inventory of GTL2003BQ,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2003BQ,118 is usually 5 days.
3.What payment methods are accepted for GTL2003BQ,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2003BQ,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2003BQ,118?
GTL2003BQ,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2003BQ,118 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 GTL2003BQ,118?
For technical support, including GTL2003BQ,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2003BQ,118 requirements.
6.How does Aetrix verify that GTL2003BQ,118 is sourced from the original manufacturer or authorized distributors?
All GTL2003BQ,118 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 GTL2003BQ,118 meets industry standards.
7.What is the process for return or replacement of GTL2003BQ,118?
All GTL2003BQ,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2003BQ,118, 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 GTL2003BQ,118 part is unused and in its original packaging.
Return procedure for GTL2003BQ,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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