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NXP Semiconductors GTL2002DP,118
- Part No.:
- GTL2002DP,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2002DP,118.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,804
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Product details
Overview
GTL2002DP,118 from NXP Semiconductors is a 2-bit bidirectional low-voltage translator IC enabling seamless voltage level translation between 1.0 V and 5.0 V buses without direction control. It uses matched NMOS pass transistors with a common reference gate (GREF) and reference transistor (SREF/DREF), delivering 6.5 Ω typical ON-state resistance, sub-5.5 ns propagation delay, and ESD protection exceeding 2000 V HBM. It is deployed in I²C-bus interface translation between 1.8 V processors and 3.3 V/5 V peripherals.
For engineers reviewing the GTL2002DP,118 datasheet, GTL2002DP,118 pinout, GTL2002DP,118 application, or GTL2002DP,118 equivalent, this page provides verified electrical parameters, TSSOP8 package layout guidance, bidirectional clamping behavior, hot-insertion support, and real-world I²C and GTL/GTL+ translation use cases - all confirmed from NXP's Rev. 8 product data sheet.
Technical Context
The GTL2002DP,118 implements Gunning Transceiver Logic – Transceiver Voltage Clamp (GTL-TVC) architecture using two identical NMOS pass transistors (S1/D1 and S2/D2) plus a reference transistor (SREF/DREF/GREF). Its operation relies on biasing GREF ≥1.5 V above SREF to enable precise voltage clamping at the S-side output while allowing D-side pull-up to VCC.
Unlike directional translators, it requires no control signal: when either port is LOW, the channel conducts; when Dn is HIGH, Sn is clamped to SREF voltage; when Sn is HIGH, Dn is pulled to VCC via external resistors. All transistors are fabricated identically, ensuring ≤1% mismatch in Ron and propagation delay across channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 2-bit bidirectional voltage translator for 1.0 V–5.0 V bus interfacing |
| ON-state resistance (Ron) | 6.5 Ω typical at VGREF = 4.5 V, enabling <350 mV voltage drop at 15 mA clamp current |
| Propagation delay (tPLH/tPHL) | 1.5 ns typical (≤5.5 ns max), supporting >200 MHz signal translation in translator-mode applications |
| ESD rating | 2000 V HBM (JESD22-A114), 1000 V CDM (JESD22-C101), protecting low-voltage I/O from system-level discharge |
| Operating temperature | −40 °C to +85 °C ambient, validated for industrial and embedded computing environments |
| Supply requirement | No power supply needed - operates passively using external pull-ups and reference biasing only |
| Input tolerance | 5 V tolerant on all Dn/Sn pins, allowing safe connection to higher-voltage buses without level-shifting front-end |
Pinout & Package
TSSOP8 package (SOT505-1): plastic thin shrink small outline, 8 leads, 3 mm body width, 0.65 mm lead pitch, exposed pad optional. Pin 1 index marked; moisture sensitivity level (MSL) 1 - unlimited floor life at ≤30 °C/60% RH.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Common return path for all internal transistors; must be connected to system ground plane |
| 2 SREF | Source of reference transistor | Sets clamping voltage for S-side outputs; tied to processor core voltage (e.g., 1.2 V, 1.5 V, or 1.8 V) |
| 3 S1 | Low-voltage port 1 source | Connects to 1.0–1.8 V domain (e.g., CPU I/O); bidirectionally translated to D1 |
| 4 S2 | Low-voltage port 2 source | Second independent low-voltage I/O channel; electrically matched to S1 |
| 5 D2 | High-voltage port 2 drain | Connects to 2.5–5.0 V domain (e.g., I²C pull-up rail); bidirectionally translated to S2 |
| 6 D1 | High-voltage port 1 drain | First high-voltage I/O channel; pulled to VCC via external resistor (e.g., 2.2 kΩ) |
| 7 DREF | Drain of reference transistor | Bias node tied to D-side VCC through 200 kΩ pull-up; filters noise with optional capacitor |
| 8 GREF | Gate of reference transistor | Control input for clamping action; must be ≥1.5 V above SREF for reliable operation |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bidirectional translation without timing-critical control signals or additional GPIO overhead |
| Flow-through pinout (TSSOP8) | Linear S1–S2–D2–D1 arrangement simplifies PCB routing and minimizes trace crossovers on dense layouts |
| Matched transistor characteristics | Identical Ron and delay across both channels ensures consistent timing and voltage thresholds in multi-bit buses |
| Hot-insertion support | Zero static power and latch-up immunity allow safe insertion into live backplanes or hot-swap systems |
| Reference transistor flexibility | SREF/DREF/GREF can be implemented using any matched Sn/Dn pair, easing board layout and reference sourcing |
Applications
| I²C Bus Translation | GTL/GTL+ to LVTTL Interface |
|---|---|
Use Scenario: Connecting a 1.2 V or 1.8 V application processor I²C port to a 3.3 V sensor hub or EEPROM. IC Role / Device Role / Timing Role: Bidirectional voltage clamp translating SDA/SCL signals while preserving open-drain topology and timing integrity. Use Value: Eliminates need for dual-directional logic buffers or complex direction-control circuitry; maintains I²C specification compliance up to 400 kHz. |
Use Scenario: Interfacing legacy GTL+ memory subsystems (1.2 V swing) with modern LVTTL-based memory controllers (2.5 V/3.3 V). IC Role / Device Role / Timing Role: Level-shifting transceiver that clamps GTL+ outputs to LVTTL-compatible thresholds without adding propagation skew. Use Value: Enables backward compatibility with GTL/GTL+ signaling standards while supporting higher-speed LVTTL timing margins. |
| Processor Core Voltage Scaling | Multi-Voltage Backplane Bridging |
Use Scenario: Migrating SoC I/O from 1.5 V to 1.0 V while retaining connectivity to fixed 3.3 V peripheral ASICs. IC Role / Device Role / Timing Role: Unidirectional down-translator protecting low-voltage CPU pins from overvoltage during boot or reset sequences. Use Value: Allows gradual voltage scaling without redesigning entire I/O subsystem; supports 15 mA clamp current per channel. |
Use Scenario: Bridging 1.8 V FPGA configuration I/O to 5 V CPLD management logic on a shared backplane. IC Role / Device Role / Timing Role: Passive bidirectional translator handling mixed-voltage handshake signals (e.g., INIT_B, DONE, CCLK). Use Value: Provides galvanic isolation-free voltage adaptation with sub-2 ns 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 |
|---|---|---|---|
| TXB0102RUGR | Active translation with integrated charge pump; requires 1.2–3.6 V supply; 3.5 Ω Ron; 15 ns max delay | Supports lower minimum voltage (1.2 V) but adds supply dependency and higher propagation latency | Preferred when ultra-low-voltage operation (<1.2 V) or tighter supply regulation is required |
| SN74AVC2T244RSWR | Direction-controlled dual-bit translator; 3.3 V supply only; 4.5 Ω Ron; 3.2 ns max delay; push-pull outputs | Requires explicit DIR signal; not suitable for open-drain buses like I²C without external pull-ups | Chosen when deterministic unidirectional flow and higher drive strength (>24 mA) are prioritized |
Compared with TXB0102RUGR and SN74AVC2T244RSWR, GTL2002DP,118 offers zero-power passive operation and true bidirectional capability without control logic - making it optimal for I²C, SMBus, and other open-drain protocols where supply simplicity and signal transparency are critical.
Availability
GTL2002DP,118 is available at Aetrix Electronics and suitable for industrial automation interfaces, embedded processor I/O expansion, and multi-voltage sensor subsystems requiring stable component supply across extended temperature ranges.
Supply support for GTL2002DP,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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in interface, power management, and RF technologies.
The GTL2002DP,118 belongs to NXP's GTL-TVC family of passive voltage translators, engineered specifically for high-speed, low-latency, directionless level shifting in memory subsystems, processor interconnects, and legacy protocol bridging.
FAQ
What is the operating voltage range supported by the GTL2002DP,118?
The GTL2002DP,118 supports bidirectional voltage translation between any pair of voltages from 1.0 V to 5.0 V - including 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V buses. It does not require an internal power supply; operation depends solely on external pull-up resistors and proper biasing of GREF relative to SREF.
Does the GTL2002DP,118 require a direction control signal?
No, the GTL2002DP,118 operates without any direction pin or control signal. Its NMOS pass-gate architecture enables automatic bidirectional conduction: when either S1 or D1 is LOW, the channel turns ON; when D1 is HIGH, S1 is clamped to the SREF voltage; when S1 is HIGH, D1 is pulled to VCC via external resistor. This eliminates timing-critical direction management.
How is the reference voltage (SREF) configured for the GTL2002DP,118?
SREF must be connected directly to the low-voltage domain's supply rail (e.g., 1.2 V, 1.5 V, or 1.8 V processor core voltage). For reliable operation, GREF must be biased at least 1.5 V above SREF - typically achieved by tying GREF and DREF together and pulling them to the high-voltage side (e.g., 3.3 V) via a 200 kΩ resistor.
Can the GTL2002DP,118 be used in I²C-bus applications?
Yes, the GTL2002DP,118 is explicitly designed for I²C-bus translation. Its open-drain compatible operation, sub-5.5 ns propagation delay, and 2000 V HBM ESD rating make it ideal for bridging 1.0–1.8 V microcontroller I²C ports to 3.3 V or 5 V peripherals while preserving bus timing and noise immunity - as confirmed in NXP's application diagrams and test conditions.
What package type is used for the GTL2002DP,118?
The GTL2002DP,118 uses the TSSOP8 package (SOT505-1): plastic thin shrink small outline with 8 leads, 3.0 mm body width, and 0.65 mm lead pitch. It features a flow-through pinout (GND–SREF–S1–S2–D2–D1–DREF–GREF), optimized for minimal PCB trace length and reduced crosstalk in high-density layouts.
GTL2002DP,118 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 V ~ 5.5 V
- Voltage - VCCB:
- 1 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:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
GTL2002DP,118 FAQ
1.How can I place an order for GTL2002DP,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2002DP,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 GTL2002DP,118 reliable?
The price and inventory of GTL2002DP,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2002DP,118 is usually 5 days.
3.What payment methods are accepted for GTL2002DP,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2002DP,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2002DP,118?
GTL2002DP,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2002DP,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 GTL2002DP,118?
For technical support, including GTL2002DP,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2002DP,118 requirements.
6.How does Aetrix verify that GTL2002DP,118 is sourced from the original manufacturer or authorized distributors?
All GTL2002DP,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 GTL2002DP,118 meets industry standards.
7.What is the process for return or replacement of GTL2002DP,118?
All GTL2002DP,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2002DP,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 GTL2002DP,118 part is unused and in its original packaging.
Return procedure for GTL2002DP,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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