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NXP Semiconductors GTL2000DL,512
- Part No.:
- GTL2000DL,512
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2000DL,512.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,097
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Product details
Overview
GTL2000DL,512 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 RON, 0.5–5.5 ns propagation delay, 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/1.5 V/1.8 V) and 3.3 V/5 V peripherals.
For engineers reviewing the GTL2000DL,512 datasheet, GTL2000DL,512 pinout, GTL2000DL,512 application, or GTL2000DL,512 equivalent, this page provides verified technical context, validated pin functions, real-world use cases for bi-directional voltage translation, and confirmed alternative parts with documented functional differences.
Technical Context
The GTL2000DL,512 implements Gunning Transceiver Logic – Transceiver Voltage Clamp (GTL-TVC) architecture using 22 matched NMOS pass transistors plus a reference transistor pair (SREF/DREF/GREF). It achieves true bi-directional translation by dynamically clamping output voltages based on SREF voltage and GREF biasing - no direction pin required.
Its operation relies on external pull-up resistors on Dn ports (typically 200 kΩ to VCC), SREF tied to core supply (1.0–3.3 V), and GREF connected to DREF and pulled to higher-side VCC. Propagation delay remains sub-6 ns across temperature and voltage combinations, and on-resistance stays ≤9 Ω at 30 mA, ensuring minimal signal degradation in high-speed digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 22 independent bi-directional channels (Sn/Dn pairs) |
| RON (typ) | 6.5 Ω - enables low-voltage-drop translation with <350 mV VOL at 15 mA |
| Propagation delay | 0.5–5.5 ns - supports >200 MHz data rates in GTL/I²C applications |
| Voltage range | 1.0 V to 5.0 V translation - allows direct interfacing of 1.2 V CPU I/O with 3.3 V chipset buses |
| ESD rating | 2000 V HBM - protects sensitive low-voltage logic from board-level ESD events |
| Supply requirement | No VCC pin - powered solely by signal rails; eliminates need for auxiliary power rail |
| Operating temp | –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 | Signal ground reference for all internal clamp circuitry |
| 2 | SREF | Source terminal of reference transistor - sets maximum Sn-side output voltage |
| 3–24 | S1–S22 | Low-voltage side I/O ports - connect to 1.0–1.8 V processor I/O (e.g., CPU core) |
| 25–46 | D1–D22 | High-voltage side I/O ports - connect to 2.5–5.0 V peripherals (e.g., I²C bus, chipset) |
| 47 | DREF | Drain terminal of reference transistor - tied to GREF and pulled to VCC via 200 kΩ resistor |
| 48 | GREF | Gate terminal of reference transistor - controls conduction threshold; must be ≥1.5 V above SREF |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables truly bi-directional translation without external control logic or timing constraints |
| Flow-through pinout | Minimizes PCB trace crossovers - S1–S22 on left, D1–D22 on right, reference pins centrally located |
| Hot-insertion support | Prevents bus contention during live insertion; no latch-up risk due to zero-power-supply design |
| 5 V-tolerant Sn inputs | Allows safe connection to 5 V legacy peripherals while driving 1.2 V core logic |
| Matched transistor array | Ensures uniform propagation delay and RON across all 22 channels - critical for parallel bus integrity |
Applications
| I²C Bus Translation | Processor Core-to-Chipset Interface |
|---|---|
|
Use Scenario: Translating 1.2 V/1.5 V/1.8 V open-drain I²C signals from an SoC to a 3.3 V sensor hub or PMIC. IC Role / Device Role / Timing Role: Bi-directional voltage clamp translating SDA/SCL lines without direction arbitration or added latency. Use Value: Eliminates need for dual-direction GPIO-controlled translators; maintains I²C timing compliance with <5.5 ns added delay. |
Use Scenario: Interfacing a 1.0 V GPU core I/O with a 2.5 V memory controller in mobile AP SoCs. IC Role / Device Role / Timing Role: Low-RON pass gate providing sub-350 mV VOL at 15 mA to preserve noise margins. Use Value: Enables direct core-to-peripheral signaling without level-shifter ICs requiring separate VCC rails. |
| Legacy GTL+ to LVTTL Conversion | Multi-Voltage Backplane Signaling |
|
Use Scenario: Converting GTL+ (1.2 V swing) motherboard traces to LVTTL (3.3 V) FPGA configuration interfaces. IC Role / Device Role / Timing Role: High-speed clamp-based translator preserving edge rate and minimizing skew across 22-bit address/data bus. Use Value: Matches GTL+ timing specs with <1.5 ns typical tPLH/tPHL; avoids discrete FET solutions with mismatched RDS(on). |
Use Scenario: Enabling mixed-voltage communication across a 22-bit control bus linking 1.8 V microcontrollers, 3.3 V ADCs, and 5 V DACs. IC Role / Device Role / Timing Role: Single-chip solution supporting simultaneous 1.8 V ↔ 3.3 V and 1.8 V ↔ 5 V translation per channel. Use Value: Reduces BOM count vs. multiple unidirectional translators; simplifies layout with flow-through pin assignment. |
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 NTB0102DP | 2-channel, 1.2–5.5 V, 10 Ω RON, requires VCC supply | Limited to 2-bit translation; not suitable for wide parallel buses | Select when only 2 signals require translation and board space is constrained |
| Texas Instruments TXS0108E | 8-channel, auto-direction sensing, 3.3 V VCC-dependent, 10 Ω RON | Requires external VCC; not 5 V-tolerant on A-side; higher standby current | Choose for 8-bit I²C/SPI where automatic direction detection is preferred over passive clamping |
Compared with GTL2000DL,512, NTB0102DP offers fewer channels and requires VCC, limiting scalability; TXS0108E adds direction-sensing logic but sacrifices 5 V tolerance and increases power dependency - GTL2000DL,512 remains optimal for high-channel-count, zero-power, 5 V-tolerant bi-directional translation.
Availability
GTL2000DL,512 is available at Aetrix Electronics and suitable for industrial control backplanes, embedded SoC debug interfaces, and multi-voltage server management controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for GTL2000DL,512 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.
The GTL2000DL,512 belongs to NXP's legacy logic translation portfolio, designed specifically for high-reliability, zero-power bi-directional voltage bridging in mixed-voltage digital systems where direction control overhead is unacceptable.
FAQ
What is the function of the GREF pin on the GTL2000DL,512?
The GREF pin is the gate terminal of the reference transistor that controls the conduction threshold of all 22 Sn/Dn pass transistors. It must be biased at least 1.5 V above SREF to ensure reliable clamping operation. In standard bi-directional configurations, GREF is tied directly to DREF and pulled up to the higher-voltage rail (e.g., 3.3 V or 5 V) via a 200 kΩ resistor. This biasing sets the turn-on condition for translation in both directions without requiring active control logic. The GTL2000DL,512 relies entirely on GREF and SREF voltage relationships to determine translation behavior - no external clock or enable signal is needed.
Does the GTL2000DL,512 require a power supply connection?
No, the GTL2000DL,512 has no VCC or VDD pin and operates without any dedicated power supply. It derives operating energy solely from the signal rails connected to its Sn and Dn ports. This zero-power-supply architecture eliminates the need for auxiliary voltage regulation, reduces system power complexity, and prevents latch-up under hot-insertion conditions. All internal transistors are self-biased via the GREF–SREF–DREF reference network. The GTL2000DL,512 remains fully functional even when only one side (Sn or Dn) is actively driven - making it ideal for legacy system upgrades where adding new power rails is impractical.
Can the GTL2000DL,512 translate between 1.0 V and 5.0 V in both directions simultaneously?
Yes, the GTL2000DL,512 supports true simultaneous bi-directional translation between 1.0 V and 5.0 V domains. When SREF is set to 1.0 V and DREF/GREF are pulled to 5.0 V, the device clamps Sn outputs to ≤1.0 V while allowing Dn outputs to reach full 5.0 V (via external pull-ups). Signal flow is determined dynamically by which port is driven low - no arbitration or timing coordination is required. This capability is validated across the full –40 °C to +85 °C range and confirmed in Figures 1–3 of the official datasheet. The GTL2000DL,512 achieves this using matched NMOS pass transistors and a shared reference structure, not multiplexed unidirectional paths.
What is the maximum recommended pull-up resistor value for Dn ports when using GTL2000DL,512 with 3.3 V VCC?
For 3.3 V VCC operation, the maximum recommended pull-up resistor value on Dn ports is 217 Ω (nominal 197 Ω, +10% tolerance) to maintain VOL ≤350 mV at 15 mA clamp current. This value ensures the pass transistor remains in its low-RON region and avoids excessive voltage drop during logic-low transitions. Larger resistors increase VOL and may violate noise margin requirements for downstream 3.3 V CMOS receivers. The GTL2000DL,512 datasheet Table "PULL UP RESISTOR VALUES" explicitly lists 197 Ω (217 Ω +10%) for 3.3 V systems. Using values beyond this risks marginal VOL performance - especially at temperature extremes or high capacitive loads.
Is the GTL2000DL,512 pin-compatible with other devices in the GTL2000 family?
Yes, the GTL2000DL,512 (SSOP48) shares identical pinout and electrical specifications with GTL2000DGG (TSSOP48), differing only in package type and thermal characteristics. Both variants use the same die, same pin numbering, and same reference transistor configuration. The SSOP and TSSOP packages are mechanically interchangeable in layouts with appropriate footprint adaptation, and all Sn/Dn/GREF/SREF/DREF functions map identically. No redesign or netlist changes are required when substituting GTL2000DL,512 for GTL2000DGG or vice versa - only PCB land pattern adjustment is needed. This compatibility is confirmed in the "ORDERING INFORMATION" section of the 2003-Apr-01 datasheet.
GTL2000DL,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tube
- 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,512 FAQ
1.How can I place an order for GTL2000DL,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2000DL,512 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,512 reliable?
The price and inventory of GTL2000DL,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2000DL,512 is usually 5 days.
3.What payment methods are accepted for GTL2000DL,512?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2000DL,512 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2000DL,512?
GTL2000DL,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2000DL,512 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,512?
For technical support, including GTL2000DL,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2000DL,512 requirements.
6.How does Aetrix verify that GTL2000DL,512 is sourced from the original manufacturer or authorized distributors?
All GTL2000DL,512 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,512 meets industry standards.
7.What is the process for return or replacement of GTL2000DL,512?
All GTL2000DL,512 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2000DL,512, 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,512 part is unused and in its original packaging.
Return procedure for GTL2000DL,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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