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NXP Semiconductors GTL2000DL,518
- Part No.:
- GTL2000DL,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2000DL,518.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,403
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Product details
Overview
GTL2000DL,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 6.5 Ω typical on-resistance, 1.5 ns typical propagation delay (Sn↔Dn), 5 V-tolerant inputs, and operates across –40 °C to +85 °C. It is used in I²C bus interface translation between low-voltage processors (e.g., 1.2 V/1.8 V core) and 3.3 V/5 V peripherals.
For engineers reviewing the GTL2000DL,518 datasheet, GTL2000DL,518 pinout, GTL2000DL,518 application, or GTL2000DL,518 equivalent, key selection criteria include its directionless bi-directional operation, reference-transistor-based clamping architecture, flow-through SSOP48 pinout, hot-insertion support, and compatibility with GTL, GTL+, LVTTL/TTL, and CMOS logic families across mixed-voltage systems.
Technical Context
The GTL2000DL,518 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 on Sn and Dn ports - no external direction signal is required.
It operates with SREF set between 1.0 V and (VDREF − 1.5 V), where VDREF and GREF are tied and pulled to higher-side VCC (3.3–5.5 V). The device delivers sub-350 mV VOL at 15 mA clamp current and supports both bi-directional and uni-directional (up/down) translation modes via external pull-up resistor configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 22-bit bi-directional voltage translator with no direction pin |
| On-resistance (RON) | 6.5 Ω typical - enables low-loss signal coupling and minimal voltage drop during active translation |
| Propagation delay | 0.5–5.5 ns - supports high-speed I²C, GTL+, and LVTTL interfaces up to ~200 MHz effective bandwidth |
| Voltage range | 1.0 V to 5.0 V translation - allows direct interfacing of 1.2 V/1.5 V/1.8 V processors with 3.3 V/5 V buses |
| ESD protection | 2000 V HBM / 200 V MM / 1000 V CDM - protects sensitive low-voltage I/O during board handling and system operation |
| Supply requirement | No power supply needed - powered solely by signal rails; eliminates need for auxiliary VCC and reduces BOM count |
| Operating temperature | –40 °C to +85 °C - qualified for industrial and embedded computing environments |
Pinout & Package
Package: SSOP48 (SOT370-1), 48-pin plastic shrink small outline package, 7.5 mm body width, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal transistors and ESD structures |
| 2 | SREF | Source terminal of reference transistor - sets low-side output voltage limit (e.g., 1.2 V or 1.5 V) |
| 3–24 | Sn (S1–S22) | Low-voltage side I/O ports - connect to processor core I/O (e.g., 1.2 V CPU bus) |
| 25–46 | Dn (D1–D22) | High-voltage side I/O ports - connect to peripheral bus (e.g., 3.3 V I²C or GTL+ bus) |
| 47 | DREF | Drain terminal of reference transistor - tied to GREF and pulled to high-side VCC |
| 48 | GREF | Gate terminal of reference transistor - controls conduction threshold and ensures proper clamping bias |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bi-directional translation using only voltage differential - eliminates timing-critical direction control logic and PCB routing complexity |
| Flow-through pinout | Sn (pins 3–24) and Dn (pins 25–46) arranged linearly - simplifies layer stacking and minimizes trace crossovers on dense PCBs |
| Hot insertion support | Zero power-supply dependency and latch-up immunity allow safe live insertion into powered backplanes or modular systems |
| 5 V tolerant inputs | Allows direct connection to legacy 5 V peripherals without external level-shifting buffers or resistive dividers |
| Matched transistor array | All 22 Sn/Dn channels share identical electrical characteristics - ensures uniform propagation delay and VOL across all bits |
Applications
| Processor-to-Chipset I²C Translation | GTL+/GTL Bus Interface |
|---|---|
Use Scenario: Connecting a 1.2 V ARM processor's open-drain I²C port to a 3.3 V PMIC or sensor hub. IC Role / Device Role / Timing Role: Bi-directional voltage clamp translating SDA/SCL signals while preserving timing integrity and bus arbitration. Use Value: Eliminates need for dual-supply translators or discrete MOSFET solutions - reduces component count and layout area by >50%. |
Use Scenario: Interfacing a 1.8 V FPGA I/O bank with a GTL+ motherboard bus operating at 1.2 V nominal. IC Role / Device Role / Timing Role: GTL-TVC clamping translator maintaining GTL+ waveform fidelity and noise margin under dynamic load. Use Value: Achieves <5.5 ns max propagation delay and <350 mV VOL - meets JEDEC GTL+ timing budgets without external termination tuning. |
| LVTTL-to-5 V CMOS Interface | Multi-Voltage Memory Subsystem |
Use Scenario: Bridging a 2.5 V microcontroller's address/data bus to legacy 5 V SRAM or EPROM devices. IC Role / Device Role / Timing Role: Uni-directional high-to-low translator configured with external 200 kΩ pull-up on DREF/GREF. Use Value: Provides clean 2.5 V logic-high outputs referenced to SREF - avoids partial turn-on of 5 V device inputs and ensures reliable read/write cycles. |
Use Scenario: Supporting simultaneous 1.5 V DDR controller and 3.3 V flash memory in an industrial SoM design. IC Role / Device Role / Timing Role: Multi-bit bidirectional translator managing data strobes and command lines across voltage domains. Use Value: Enables shared control bus without voltage conflict - maintains signal integrity across 22 parallel lines with matched skew <100 ps. |
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 |
|---|---|---|---|
| NXP PCA9306DP,118 | 2-bit, I²C-specific, requires dual supply (Vref1/Vref2); lower channel count, smaller TSSOP8 package | Optimized for low-pin-count I²C only; lacks GTL/GTL+ support and multi-bit flow-through routing | Select when only 2-channel I²C translation is needed and space is constrained - not suitable for 22-bit parallel bus translation. |
| Texas Instruments TXB0108PWR | 8-bit auto-direction sensing, dual-supply (1.2–3.6 V / 1.65–5.5 V), higher quiescent current, 32-pin TSSOP | Supports automatic direction detection but adds latency (~20 ns); requires two supplies and external enable | Choose for flexible 8-bit translation with auto-sensing - unsuitable for 22-bit or directionless GTL-TVC use cases requiring minimal propagation delay. |
Compared with PCA9306DP,118 and TXB0108PWR, the GTL2000DL,518 uniquely delivers 22-bit directionless translation with sub-6 ns delay, zero-supply operation, and native GTL/GTL+ compatibility - making it irreplaceable for high-density, low-latency mixed-voltage bus bridging in industrial compute and communications hardware.
Availability
GTL2000DL,518 is available at Aetrix Electronics and suitable for industrial embedded controllers, server management subsystems, and telecom baseband modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for GTL2000DL,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 logic portfolio.
The GTL2000DL,518 belongs to NXP's legacy GTL-TVC translator family, designed specifically for high-speed, low-power, directionless voltage translation in mixed-signal computing platforms undergoing voltage scaling - especially where processor core voltages continue to shrink below 1.5 V.
FAQ
What is the primary function of the GTL2000DL,518?
The GTL2000DL,518 is a 22-bit bi-directional low-voltage translator that enables voltage level translation between 1.0 V and 5.0 V logic domains without requiring a direction control signal. Its GTL-TVC architecture uses matched NMOS transistors and a reference transistor to dynamically determine translation direction based on relative voltage levels at the Sn and Dn ports - making the GTL2000DL,518 ideal for I²C, GTL+, and mixed-voltage bus bridging in modern embedded systems.
Does the GTL2000DL,518 require a power supply to operate?
No, the GTL2000DL,518 does not require an external power supply. It derives operating bias from the connected signal rails - specifically, GREF and DREF are tied together and pulled to the higher-voltage side (e.g., 3.3 V or 5 V) via an external resistor, while SREF connects to the lower-voltage domain (e.g., 1.2 V). This zero-supply operation eliminates auxiliary regulators and reduces system-level power complexity - a defining feature of the GTL2000DL,518.
What is the maximum recommended operating temperature for the GTL2000DL,518?
The GTL2000DL,518 is rated for operation from –40 °C to +85 °C ambient temperature, per its recommended operating conditions. This industrial-grade temperature range is validated across all electrical parameters including on-resistance, propagation delay, and VOL. The GTL2000DL,518 maintains full functionality within this range without derating, supporting deployment in fanless industrial controllers, telecom line cards, and automotive body-control modules.
Can the GTL2000DL,518 be used for uni-directional translation?
Yes, the GTL2000DL,518 supports both bi-directional and uni-directional (high-to-low or low-to-high) translation modes. For uni-directional use, the reference configuration remains the same (GREF tied to DREF, pulled to high-side VCC; SREF connected to low-side VDD), but external pull-up resistors are applied only on the target output side. The GTL2000DL,518's architecture inherently supports all three modes - confirmed in Philips Application Note AN10145-01 and validated in Figures 1–3 of the GTL2000DL,518 datasheet.
What package type is used for the GTL2000DL,518?
The GTL2000DL,518 is packaged in a 48-pin SSOP (shrink small outline package) with 7.5 mm body width, designated SOT370-1. This package provides robust thermal performance and fine-pitch surface-mount compatibility for high-density PCB layouts. Pin assignments follow a flow-through arrangement - Sn pins occupy positions 3–24 and Dn pins occupy 25–46 - which directly supports the GTL2000DL,518's intended use in parallel bus translation with minimal trace length mismatch.
GTL2000DL,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-BSSOP (0.295", 7.50mm Width)
GTL2000DL,518 FAQ
1.How can I place an order for GTL2000DL,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2000DL,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 GTL2000DL,518 reliable?
The price and inventory of GTL2000DL,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2000DL,518 is usually 5 days.
3.What payment methods are accepted for GTL2000DL,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2000DL,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2000DL,518?
GTL2000DL,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2000DL,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 GTL2000DL,518?
For technical support, including GTL2000DL,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2000DL,518 requirements.
6.How does Aetrix verify that GTL2000DL,518 is sourced from the original manufacturer or authorized distributors?
All GTL2000DL,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 GTL2000DL,518 meets industry standards.
7.What is the process for return or replacement of GTL2000DL,518?
All GTL2000DL,518 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2000DL,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 GTL2000DL,518 part is unused and in its original packaging.
Return procedure for GTL2000DL,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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