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NXP Semiconductors GTL2002D/DG,118
- Part No.:
- GTL2002D/DG,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2002D/DG,118.pdf
- Description:
- IC TRANSLATOR BIDIRECTIONAL 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
GTL2002D/DG,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 reference transistor (SREF/DREF/GREF) to clamp output voltages, supports hot insertion, requires no power supply, and delivers 6.5 Ω typical ON-state resistance at 4.5 V gate drive for I²C-bus and GTL/GTL+ interface applications.
For engineers reviewing the GTL2002D/DG,118 datasheet, GTL2002D/DG,118 pinout, GTL2002D/DG,118 application, or GTL2002D/DG,118 equivalent, this device offers verified bidirectional translation across 1.0–5.0 V domains, flow-through SO8 pinout, ESD robustness (>2000 V HBM), and compatibility with LVTTL/TTL, GTL+, and open-drain processor I/O interfaces.
Technical Context
The GTL2002D/DG,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). Translation direction is determined dynamically by relative voltage levels on Sn and Dn ports, eliminating need for external direction signals.
Its operation relies on gate biasing: GREF must be ≥1.5 V above SREF for optimal clamping; SREF connects to low-voltage core supply (e.g., 1.2 V or 1.8 V CPU I/O), while DREF ties to higher-voltage bus (e.g., 3.3 V or 5 V I²C). Propagation delay is ≤5.5 ns (tPLH/tPHL), and ON-resistance varies from 3.5 Ω (VGREF = 4.5 V) to 105 Ω (VGREF = 1.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 2-bit bidirectional voltage translator with no direction pin; enables automatic HIGH-to-LOW and LOW-to-HIGH translation |
| ON-state Resistance (Ron) | 3.5 Ω typical at VGREF = 4.5 V - ensures minimal voltage drop and signal integrity in high-speed I²C paths |
| Propagation Delay | ≤5.5 ns max (tPLH/tPHL) - supports >100 MHz effective data rates in translator-mode applications |
| Voltage Range Support | 1.0 V to 5.0 V bidirectional translation - directly interfaces 1.2 V/1.5 V/1.8 V processors with 3.3 V/5 V peripherals |
| ESD Protection | 2000 V HBM (JESD22-A114), 1000 V CDM (JESD22-C101) - protects sensitive low-voltage I/O during board handling and system operation |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and embedded computing environments |
| Supply Requirement | No VCC required - operates passively using only external pull-up resistors and reference voltage (SREF) |
Pinout & Package
Package: SO8 (SOT96-1), plastic small outline package, 8 leads, body width 3.9 mm, lead pitch 1.27 mm.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal transistors; must connect to system common ground plane |
| 2 | SREF | Source of reference transistor; sets maximum output voltage on Sn ports (e.g., 1.2 V or 1.8 V) |
| 3 | S1 | Low-voltage side port 1; bidirectionally translates with D1; no internal pull-up/down |
| 4 | S2 | Low-voltage side port 2; bidirectionally translates with D2; electrically matched to S1 |
| 5 | D2 | High-voltage side port 2; pulled to VCC via external resistor; translates with S2 |
| 6 | D1 | High-voltage side port 1; pulled to VCC via external resistor; translates with S1 |
| 7 | DREF | Drain of reference transistor; tied to high-voltage bus (e.g., 3.3 V) through 200 kΩ pull-up |
| 8 | GREF | Gate of reference transistor; must be ≥1.5 V above SREF for stable clamping operation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional translation without direction pin | Eliminates GPIO overhead and timing-critical direction control logic in I²C and GTL+ systems |
| Flow-through SO8 pinout | Enables straight PCB trace routing between S1→D1 and S2→D2, minimizing crosstalk and layout complexity |
| Matched transistor characteristics | Ensures <±5% deviation in Ron and propagation delay between channels - critical for multi-bit bus integrity |
| 5 V tolerant inputs | Allows direct connection to legacy 5 V peripherals without level-shifting front-end circuitry |
| Hot-insertion support | Prevents bus contention during live module replacement - essential for modular server and telecom backplanes |
Applications
| I²C Bus Translation | GTL+/LVTTL Interface |
|---|---|
|
Use Scenario: Connecting a 1.2 V ARM Cortex-M7 microcontroller's I²C port to a 3.3 V EEPROM or sensor. IC Role / Device Role / Timing Role: Bidirectional voltage clamp translating SDA/SCL signals while preserving rise/fall times and noise margins. Use Value: Enables direct interoperability without external direction logic or dual-supply translators - reduces BOM count and PCB area. |
Use Scenario: Interfacing a GTL+ bus (1.2 V swing) from a high-speed memory controller to a 3.3 V LVTTL FPGA configuration interface. IC Role / Device Role / Timing Role: GTL-TVC translator maintaining sub-6 ns propagation delay and <350 mV VOL under 15 mA clamp current. Use Value: Preserves GTL+ timing budgets while converting to standard LVTTL logic thresholds - avoids signal degradation in memory subsystems. |
| Processor Core Voltage Scaling | Hot-Swappable Module Interface |
|
Use Scenario: Migrating a CPU core from 1.8 V to 1.0 V while retaining compatibility with existing 3.3 V peripheral bus infrastructure. IC Role / Device Role / Timing Role: Unidirectional down-translator protecting low-voltage I/O pins from 3.3 V bus overvoltage during voltage scaling transitions. Use Value: Extends product lifecycle by enabling process node shrink without redesigning peripheral interconnect - supports 0.8 V future scaling. |
Use Scenario: Hot-plug I/O module in industrial PLC backplane where 1.5 V module I/O must communicate with 5 V backplane bus. IC Role / Device Role / Timing Role: Bidirectional translator with no power supply and latch-up immunity - prevents bus faults during insertion/removal. Use Value: Eliminates need for complex hot-swap controllers or isolation FETs - simplifies mechanical design and improves MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | Active push-pull driver architecture; requires VCCA/VCCB supplies; 3.5 ns max tPD; 10 µA ICC | Supports higher drive strength (20 mA) but adds supply dependency and higher static current | Preferred when driving capacitive loads >50 pF or requiring guaranteed 3.3 V logic levels on both sides |
| PCA9306DCUR | Pass-transistor design like GTL2002; dual-channel; requires VREF1/VREF2; 60 ns max tPD; 1.5 µA ICC | Slower propagation delay limits use to ≤400 kHz I²C; optimized for ultra-low-power wearables | Chosen for battery-powered systems where standby current <2 µA outweighs speed requirements |
Compared with TXS0102DCUR and PCA9306DCUR, GTL2002D/DG,118 uniquely combines zero-supply operation, sub-6 ns delay, and 2000 V HBM ESD in SO8 - making it optimal for industrial I²C bridges where reliability and simplicity are prioritized over active drive capability.
Availability
GTL2002D/DG,118 is available at Aetrix Electronics and suitable for industrial automation interfaces, embedded I²C subsystems, and GTL+ memory controller interconnects requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for GTL2002D/DG,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 and analog signal conditioning ICs.
The GTL2002D/DG,118 belongs to NXP's GTL-TVC family, engineered specifically for high-speed, low-latency bidirectional voltage translation in processor-peripheral interconnects where direction control is impractical or undesirable.
FAQ
Does GTL2002D/DG,118 require a power supply to operate?
No, GTL2002D/DG,118 operates without any VCC connection. It functions passively using only external pull-up resistors on the Dn side and a reference voltage applied to SREF. This eliminates power rail dependencies and simplifies system-level power sequencing - a key advantage over active translators like TXS0102.
What is the maximum recommended clamp current per channel for GTL2002D/DG,118?
The absolute maximum clamp current per channel for GTL2002D/DG,118 is ±128 mA, but the recommended operating limit is 64 mA. For reliable 350 mV VOL performance, design for ≤15 mA per channel using pull-up resistors sized per Table 6 in the datasheet - e.g., 310 Ω for 5 V DREF with 15 mA target.
Can GTL2002D/DG,118 translate between 1.0 V and 5.0 V in both directions simultaneously?
Yes, GTL2002D/DG,118 supports true simultaneous bidirectional translation between 1.0 V and 5.0 V domains. When S1 is driven LOW by a 1.0 V processor, D1 is pulled LOW via the ON-state transistor; when D1 is driven HIGH by a 5 V peripheral, S1 is clamped to the SREF voltage (e.g., 1.2 V), enabling full protocol compliance for open-drain buses like I²C.
Is GTL2002D/DG,118 pin-compatible with other packages in the GTL2002 family?
No - GTL2002D/DG,118 uses the SO8 (SOT96-1) package with fixed pin 1=GND, pin 2=SREF, pin 3=S1, etc. The VSSOP8 variant (GTL2002DC) has different pin mapping (e.g., pin 1=SREF, pin 4=GND), and XQFN8 uses a completely distinct terminal layout. Board designs must match the exact package variant ordered.
What ESD protection level does GTL2002D/DG,118 provide, and is it sufficient for industrial handling?
GTL2002D/DG,118 exceeds 2000 V HBM (JESD22-A114) and 1000 V CDM (JESD22-C101), meeting IEC 61000-4-2 Level 2 for system-level ESD immunity. This qualifies it for industrial assembly lines and field-replaceable module handling without additional transient suppression - confirmed by NXP's qualification testing across −40 °C to +85 °C.
GTL2002D/DG,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-SOIC (0.154", 3.90mm Width)
GTL2002D/DG,118 FAQ
1.How can I place an order for GTL2002D/DG,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2002D/DG,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 GTL2002D/DG,118 reliable?
The price and inventory of GTL2002D/DG,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2002D/DG,118 is usually 5 days.
3.What payment methods are accepted for GTL2002D/DG,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2002D/DG,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2002D/DG,118?
GTL2002D/DG,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2002D/DG,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 GTL2002D/DG,118?
For technical support, including GTL2002D/DG,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2002D/DG,118 requirements.
6.How does Aetrix verify that GTL2002D/DG,118 is sourced from the original manufacturer or authorized distributors?
All GTL2002D/DG,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 GTL2002D/DG,118 meets industry standards.
7.What is the process for return or replacement of GTL2002D/DG,118?
All GTL2002D/DG,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2002D/DG,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 GTL2002D/DG,118 part is unused and in its original packaging.
Return procedure for GTL2002D/DG,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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