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NXP Semiconductors GTL2000DGG,118
- Part No.:
- GTL2000DGG,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2000DGG,118.pdf
- Description:
- IC TRANSLATOR BIDIR 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,551
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Product details
Overview
GTL2000DGG,118 from NXP Semiconductors (formerly Philips Semiconductors) is a 22-bit bi-directional low-voltage translator IC enabling seamless voltage level translation between 1.0 V and 5.0 V busses without direction control. It features 6.5 Ω typical on-resistance, 0.5–5.5 ns propagation delay, 5 V-tolerant inputs, and operates across –40 °C to +85 °C for I²C, GTL/GTL+, and LVTTL/TTL interface bridging in mixed-voltage processor systems.
For engineers reviewing the GTL2000DGG,118 datasheet, GTL2000DGG,118 pinout, GTL2000DGG,118 application, or GTL2000DGG,118 equivalent, key selection criteria include its directionless operation, reference-voltage–controlled clamping architecture, flow-through SSOP/TSSOP48 layout, and compatibility with hot-insertion and latch-up–free operation in low-power embedded interfaces.
Technical Context
The GTL2000DGG,118 implements Gunning Transceiver Logic – Transceiver Voltage Clamp (GTL-TVC) architecture using 22 matched NMOS pass transistors plus one reference transistor pair (SREF/DREF/GREF). Translation direction is determined dynamically by relative voltage levels at Sn and Dn ports - no external direction signal required.
Clamping behavior is governed by GREF biasing ≥1.5 V above SREF, enabling precise high-to-low and low-to-high translation modes. All 22 channels share identical electrical characteristics, ensuring <±50 mV inter-channel output voltage deviation and minimal skew, critical for parallel bus integrity in multi-bit applications like chipset-to-processor I/O bridging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 22 independent bi-directional translation channels (Sn/Dn pairs) |
| On-resistance (RON) | Typ. 6.5 Ω at VGREF = 3 V, IO = 15 mA - enables low-voltage-drop translation with minimal power loss |
| Propagation delay | 0.5–5.5 ns (Sn↔Dn) - supports >200 MHz data rates in GTL/GTL+ and I²C applications |
| Voltage range | 1.0 V to 5.5 V on Sn/Dn ports - allows direct interfacing of 1.0 V/1.2 V/1.5 V/1.8 V processors with 3.3 V/5.0 V peripherals |
| ESD protection | 2000 V HBM, 200 V MM, 1000 V CDM - protects sensitive low-voltage logic from board-level ESD events |
| Operating temperature | –40 °C to +85 °C - qualified for industrial and automotive under-hood control module environments |
| Supply requirement | No VCC pin - powered solely by I/O rail voltages; eliminates need for auxiliary supply routing |
Pinout & Package
Package: TSSOP48 (plastic thin shrink small outline package; 48 leads; body width 6.1 mm; SOT362-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry; must be connected to system 0 V plane |
| 2 | SREF | Source terminal of reference transistor; sets maximum output voltage on Sn side (e.g., 1.2 V core voltage) |
| 3–24 | Sn (S1–S22) | Low-voltage side I/O ports; bidirectionally translate with corresponding Dn pins |
| 25–46 | Dn (D1–D22) | High-voltage side I/O ports; pulled up externally to VCC (3.3 V/5.0 V) for up-translation |
| 47 | DREF | Drain terminal of reference transistor; tied to GREF and pulled to high-side VCC via 200 kΩ resistor |
| 48 | GREF | Gate terminal of reference transistor; bias controls clamp activation threshold and translation direction |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bi-directional translation on shared buses (e.g., I²C SDA/SCL) without timing-critical control signals or added logic |
| Flow-through pinout | Sn pins (3–24) and Dn pins (25–46) arranged linearly - minimizes PCB trace crossovers and simplifies high-density routing |
| Hot-insertion support | Zero power-supply dependency and latch-up immunity allow safe insertion into live backplanes or modular systems |
| Matched transistor array | All 22 Sn/Dn channels fabricated identically - ensures uniform propagation delay (<0.5 ns skew) and voltage translation accuracy across parallel data paths |
| 5 V-tolerant Sn inputs | Accepts 5 V logic inputs while driving sub-1.8 V outputs - eliminates need for upstream level-shifting on legacy peripheral interfaces |
Applications
| I²C Bus Translation | GTL/GTL+ to LVTTL Interface |
|---|---|
Use Scenario: Connecting a 1.2 V ARM Cortex-A series processor's I²C controller to a 3.3 V sensor hub or EEPROM. IC Role / Device Role / Timing Role: Bi-directional voltage translator handling open-drain SDA/SCL lines with automatic direction sensing and sub-1 ns channel-to-channel skew. Use Value: Eliminates external pull-up resistors on the low-voltage side and avoids contention during simultaneous read/write operations across voltage domains. | Use Scenario: Bridging GTL+ signaling from a high-speed memory controller (1.5 V swing) to LVTTL-compatible buffer logic (3.3 V logic levels). IC Role / Device Role / Timing Role: High-speed clamping translator preserving GTL+ edge rates while shifting DC levels to meet LVTTL input thresholds. Use Value: Maintains signal integrity at >100 MHz clock rates with <5.5 ns max propagation delay and <7 pF off-capacitance per channel. |
| Processor Core-to-Chipset Interfacing | Legacy Peripheral Integration |
Use Scenario: Interfacing a 1.0 V ASIC core I/O bank with a 5.0 V PCI Express root complex PHY layer. IC Role / Device Role / Timing Role: Uni-directional down-translator (Dn→Sn) protecting ultra-low-voltage core pins from 5 V overvoltage exposure. Use Value: Provides robust 5 V tolerance on Dn inputs while limiting Sn output to 1.0 V ±50 mV - prevents gate oxide damage during hot-plug events. | Use Scenario: Integrating 5 V TTL UART peripherals (e.g., RS-232 transceivers) with a modern 1.8 V microcontroller. IC Role / Device Role / Timing Role: Bidirectional translator enabling full-duplex serial communication without software-controlled direction management. Use Value: Reduces BOM count by replacing two unidirectional translators and discrete MOSFETs - saves 32 mm² PCB area in TSSOP48 footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC20T245RJRR | Active dual-supply design (VCCA/VCCB); requires direction control pin; 20-bit vs. 22-bit | Needs external direction logic; higher static current (10 µA vs. <1 µA); better for high-speed DDR control busses | Select when deterministic direction control and tighter VOL/VOL specs are required over passive simplicity |
| TXS0108EPRJR | Auto-direction sensing; 8-bit; integrated 10 kΩ pull-ups on A-side; no external RPULLUP needed | Limited to 8 channels; lacks 1.0 V support; optimized for I²C/SPI but not GTL/GTL+ | Prefer for compact 8-bit I²C/SPI bridges where board space is constrained and 1.0 V operation is unnecessary |
Compared with SN74AVC20T245RJRR and TXS0108EPRJR, the GTL2000DGG,118 uniquely delivers 22-channel passive translation without direction pins or supply rails - making it optimal for high-pin-count, ultra-low-power, mixed-voltage processor interconnects where layout simplicity and latch-up immunity are mandatory.
Availability
GTL2000DGG,118 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive infotainment head units, and server motherboard management interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for GTL2000DGG,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 roots in Philips Semiconductors' analog and logic portfolio.
The GTL2000DGG,118 belongs to NXP's legacy GTL-TVC translator family, engineered specifically for high-fidelity, low-latency voltage domain bridging in multi-voltage digital systems - especially where process node scaling drives core voltages below 1.2 V while legacy peripherals remain at 3.3 V/5.0 V.
FAQ
What is the function of the GREF pin on the GTL2000DGG,118?
The GREF pin on the GTL2000DGG,118 serves as the gate terminal of the reference transistor that controls the clamping threshold for bi-directional translation. It must be biased at least 1.5 V above SREF (e.g., tie GREF and DREF together and pull up to 3.3 V via 200 kΩ) to ensure reliable ON/OFF switching of all 22 Sn/Dn channels. Incorrect GREF biasing causes incomplete translation or excessive VOL.
Does the GTL2000DGG,118 require an external power supply?
No, the GTL2000DGG,118 requires no external VCC supply - it derives operating power entirely from the voltage applied to its I/O pins (Sn and Dn) and reference terminals (SREF/DREF/GREF). This eliminates supply rail routing, reduces system power complexity, and enables true "zero-power" translation when all ports are idle, with standby current <1 µA.
Can the GTL2000DGG,118 translate between 1.0 V and 5.0 V in both directions simultaneously?
Yes, the GTL2000DGG,118 supports simultaneous high-to-low and low-to-high translation across its 22 channels, provided GREF is correctly biased ≥1.5 V above SREF and external pull-up resistors are placed on the higher-voltage side (e.g., 5.0 V on Dn). Each channel independently senses voltage differentials, enabling real-time bidirectional data flow - essential for I²C and similar open-drain protocols.
What is the maximum recommended pull-up resistor value for the Dn side when using GTL2000DGG,118 with 3.3 V VCC and 1.5 V SREF?
For 3.3 V VCC and 1.5 V SREF, the maximum recommended pull-up resistor on the Dn side is 325 Ω at 10 mA (per the +10% column in the datasheet's pull-up table), ensuring VOL ≤ 350 mV. Using >325 Ω risks exceeding VOL spec under load, potentially causing logic errors; values below 295 Ω increase power dissipation unnecessarily. Always verify with actual trace capacitance and signal rise-time targets.
Is the GTL2000DGG,118 pin-compatible with other GTL translator variants like GTL2002 or GTL2010?
No, the GTL2000DGG,118 is not pin-compatible with GTL2002 (10-bit, SSOP24) or GTL2010 (10-bit, TSSOP24). Its 48-pin TSSOP layout, 22-channel count, and specific pin mapping (e.g., SREF at pin 2, GREF at pin 48) are unique to the GTL2000 family. Migration requires PCB redesign; however, functional behavior and reference circuit design principles are consistent across the GTL-TVC series.
GTL2000DGG,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:
- 22
- 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:
- 48-TFSOP (0.240", 6.10mm Width)
GTL2000DGG,118 FAQ
1.How can I place an order for GTL2000DGG,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2000DGG,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 GTL2000DGG,118 reliable?
The price and inventory of GTL2000DGG,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2000DGG,118 is usually 5 days.
3.What payment methods are accepted for GTL2000DGG,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2000DGG,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2000DGG,118?
GTL2000DGG,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2000DGG,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 GTL2000DGG,118?
For technical support, including GTL2000DGG,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2000DGG,118 requirements.
6.How does Aetrix verify that GTL2000DGG,118 is sourced from the original manufacturer or authorized distributors?
All GTL2000DGG,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 GTL2000DGG,118 meets industry standards.
7.What is the process for return or replacement of GTL2000DGG,118?
All GTL2000DGG,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2000DGG,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 GTL2000DGG,118 part is unused and in its original packaging.
Return procedure for GTL2000DGG,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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