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NXP Semiconductors GTL2000DGG,518
- Part No.:
- GTL2000DGG,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2000DGG,518.pdf
- Description:
- IC TRANSLATOR BIDIR 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,272
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Product details
Overview
GTL2000DGG,518 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 22 matched NMOS pass transistors, 6.5 Ω typical on-resistance, sub-5.5 ns propagation delay, and operates across –40 °C to +85 °C for I²C bus interfacing and GTL/GTL+ to LVTTL translation in mixed-voltage processor systems.
For engineers reviewing the GTL2000DGG,518 datasheet, GTL2000DGG,518 pinout, GTL2000DGG,518 application, or GTL2000DGG,518 equivalent, key selection criteria include its directionless bi-directional operation, 5 V-tolerant inputs, flow-through SSOP/TSSOP48 pinout, hot-insertion support, and absence of external power supply requirement - critical for low-voltage core-to-peripheral interface design.
Technical Context
The GTL2000DGG,518 implements Gunning Transceiver Logic – Transceiver Voltage Clamp (GTL-TVC) architecture with 22 identical Sn/Dn NMOS pass transistors and a dedicated reference transistor (SREF/DREF/GREF). Translation direction is determined dynamically by relative voltage levels at Sn and Dn ports, eliminating need for direction control logic.
It operates without VCC: SREF sets low-side output clamp voltage, DREF/GREF biasing enables automatic conduction when either port is low. Propagation delay is guaranteed ≤5.5 ns (Sn↔Dn), and on-resistance remains stable across 1.0–5.0 V translation ranges due to symmetrical transistor matching and gate voltage margin requirements (GREF ≥ SREF + 1.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 22-bit bi-directional voltage translator with no direction pin - enables automatic high↔low level translation in both directions per channel |
| On-resistance (RON) | 6.5 Ω typical at VGREF = 3 V, IO = 15 mA - ensures minimal voltage drop and signal integrity during active translation |
| Propagation delay | 0.5–5.5 ns (Sn ↔ Dn) - supports high-speed I²C, GTL+, and LVTTL interface timing budgets |
| Voltage range | 1.0 V to 5.0 V translation on both sides - allows direct interfacing of 1.0/1.2/1.5/1.8 V processors with 3.3 V/5 V peripherals |
| ESD protection | 2000 V HBM, 200 V MM, 1000 V CDM - protects sensitive low-voltage I/O pins 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 - powered solely by signal rails; eliminates need for auxiliary power rail and associated filtering |
Pinout & Package
TSSOP48 package: plastic thin shrink small outline, 48 leads, body width 6.1 mm, lead pitch 0.5 mm, compliant with JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal transistors; must be connected to system ground plane |
| 2 | SREF | Source of reference transistor; sets maximum output voltage on Sn side (e.g., 1.2 V core voltage) |
| 3–24 | S1–S22 | Low-voltage side I/O ports; bidirectionally translate with corresponding Dn pins |
| 25–46 | D1–D22 | High-voltage side I/O ports; pulled up externally to VCC (3.3 V/5 V); translate with corresponding Sn pins |
| 47 | DREF | Drain of reference transistor; tied to GREF and pulled to high-side VCC via 200 kΩ resistor |
| 48 | GREF | Gate of reference transistor; bias control node determining conduction threshold and translation stability |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bi-directional translation using only voltage differential - eliminates control logic, timing constraints, and PCB routing for DIR signals |
| Flow-through pinout | Pins S1–S22 and D1–D22 arranged linearly (S1→S22 left-to-right, D1→D22 right-to-left) - minimizes trace crossovers and simplifies high-density PCB layout |
| Hot insertion support | No power supply or latch-up risk - safe for live backplane or modular system insertion without sequencing or reset |
| 5 V tolerant inputs | Dn pins accept 5 V signals while SREF is as low as 1.0 V - protects 1.2 V/1.5 V processor I/O from overvoltage damage |
| Matched transistor array | All 22 Sn/Dn channels share identical RON, capacitance, and delay - ensures consistent timing and voltage margins across multi-bit buses like I²C data/address lines |
Applications
| I²C Bus Level 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 on SDA/SCL lines, replacing discrete MOSFET solutions with matched timing and no direction arbitration. Use Value: Eliminates external pull-up resistors on low-voltage side, reduces board area by >40% vs. discrete FET arrays, and guarantees <5.5 ns skew across all 22 bits. |
Use Scenario: Interfacing a GTL+ memory controller (1.2 V swing) with legacy LVTTL peripheral logic (2.4 V logic high). IC Role / Device Role / Timing Role: Passive clamp-based translator providing precise 1.2 V → 2.4 V up-translation and 2.4 V → 1.2 V down-translation on address/data bus lines. Use Value: Maintains GTL+ edge rates (<1 ns rise/fall) while meeting LVTTL VIH/VIL thresholds - avoids timing violations in high-speed memory subsystems. |
| Processor Core-to-Chipset Bridging | Multi-Voltage Backplane Interfacing |
|
Use Scenario: Isolating a 1.0 V GPU core I/O from a 3.3 V display interface controller in mobile SoC designs. IC Role / Device Role / Timing Role: Voltage-level firewall that prevents DC coupling and ESD injection from higher-voltage domain into ultra-low-voltage logic. Use Value: Provides 2000 V HBM ESD protection on Sn side and eliminates need for separate TVS diodes - reduces BOM count and improves reliability. |
Use Scenario: Enabling plug-and-play compatibility between 1.5 V FPGA mezzanine cards and 5 V carrier boards in modular test equipment. IC Role / Device Role / Timing Role: Hot-pluggable bi-directional translator on control/status lines (e.g., SMBus, JTAG), supporting live insertion without system reset. Use Value: No external power or configuration required - removes dependency on carrier board power sequencing and simplifies firmware initialization. |
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 | 20-bit, dual-supply (1.2–3.6 V), requires direction control pin and two independent VCCA/VCCB supplies | Requires PCB layout changes for DIR signal routing and dual power decoupling; not suitable for directionless I²C | Preferred only when strict 1.2 V ↔ 3.3 V translation with programmable direction is needed and space permits extra control logic |
| TXS0102DCUR | 2-bit, auto-direction sensing, single-supply (1.65–5.5 V), lower channel count, higher RON (10–15 Ω) | Limited to narrow-bus applications (e.g., GPIO, UART); insufficient for 22-bit parallel interfaces or high-speed I²C | Only viable for low-pin-count, low-bandwidth use cases where GTL2000DGG,518's 22-bit capacity is excessive |
Compared with SN74AVC20T245RJRR and TXS0102DCUR, the GTL2000DGG,518 uniquely delivers 22-bit directionless translation without external power - making it irreplaceable for high-channel-count, hot-pluggable, or ultra-low-power I²C and GTL+ bridging where pin count, layout simplicity, and supply autonomy are critical.
Availability
GTL2000DGG,518 is available at Aetrix Electronics and suitable for industrial embedded controllers, automotive infotainment head units, and telecom baseband processing modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for GTL2000DGG,518 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 interface innovation legacy.
The GTL2000DGG,518 belongs to NXP's legacy GTL-TVC translator family, designed specifically to solve mixed-voltage interoperability in high-speed digital systems - especially where low-voltage processor cores interface with legacy 3.3 V/5 V peripherals without direction control overhead.
FAQ
Does GTL2000DGG,518 require an external power supply?
No, the GTL2000DGG,518 operates without any VCC connection - it derives operating energy directly from the signal rails. This eliminates the need for decoupling capacitors, power sequencing, or auxiliary regulators. The device uses SREF and DREF/GREF biasing to enable translation, making GTL2000DGG,518 ideal for ultra-low-power and hot-swap applications where supply rail availability is constrained.
What is the maximum supported translation voltage range for GTL2000DGG,518?
The GTL2000DGG,518 supports bidirectional translation between any pair of voltages from 1.0 V to 5.0 V inclusive - including 1.0 V ↔ 3.3 V, 1.2 V ↔ 5.0 V, 1.5 V ↔ 2.5 V, and 1.8 V ↔ 3.3 V configurations. The constraint is that GREF must be at least 1.5 V higher than SREF, and both SREF and DREF must remain within 0–5.5 V per absolute maximum ratings.
Can GTL2000DGG,518 be used for I²C bus translation?
Yes, GTL2000DGG,518 is explicitly validated for I²C applications in its datasheet, supporting open-drain topologies on both sides. Its flow-through pinout, sub-5.5 ns propagation delay, and matched channel characteristics ensure minimal clock/data skew across SDA and SCL lines - making GTL2000DGG,518 a robust replacement for discrete MOSFET translators in 1.2 V/1.8 V processor-to-3.3 V sensor hub interfaces.
What package type does GTL2000DGG,518 use?
GTL2000DGG,518 is supplied in a TSSOP48 (thin shrink small outline package) with 48 leads, 0.5 mm pitch, and 6.1 mm body width (JEDEC MO-153 compliant). This package offers improved thermal performance and finer pitch versus the SSOP48 variant, while maintaining pin compatibility and enabling higher PCB density in space-constrained embedded designs.
Is GTL2000DGG,518 compatible with GTL+ signaling standards?
Yes, GTL2000DGG,518 is designed for direct GTL+ translation per its original Philips specification - supporting 1.2 V GTL+ swing levels on the Sn side and translating to 3.3 V LVTTL/TTL on the Dn side. Its low RON (6.5 Ω) and fast propagation delay preserve GTL+ edge integrity, and its ESD robustness (2000 V HBM) protects against bus transients common in high-speed backplane environments.
GTL2000DGG,518 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,518 FAQ
1.How can I place an order for GTL2000DGG,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2000DGG,518 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,518 reliable?
The price and inventory of GTL2000DGG,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2000DGG,518 is usually 5 days.
3.What payment methods are accepted for GTL2000DGG,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2000DGG,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2000DGG,518?
GTL2000DGG,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2000DGG,518 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,518?
For technical support, including GTL2000DGG,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2000DGG,518 requirements.
6.How does Aetrix verify that GTL2000DGG,518 is sourced from the original manufacturer or authorized distributors?
All GTL2000DGG,518 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,518 meets industry standards.
7.What is the process for return or replacement of GTL2000DGG,518?
All GTL2000DGG,518 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2000DGG,518, 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,518 part is unused and in its original packaging.
Return procedure for GTL2000DGG,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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