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NXP Semiconductors GTL2000DGG,112
- Part No.:
- GTL2000DGG,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2000DGG,112.pdf
- Description:
- IC TRNSLTR BIDIRECTIONAL 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,070
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Product details
Overview
GTL2000DGG,112 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, 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 interfacing between low-voltage processors (e.g., 1.2 V/1.5 V core) and 3.3 V/5 V peripherals.
For engineers reviewing the GTL2000DGG,112 datasheet, GTL2000DGG,112 pinout, GTL2000DGG,112 application, or GTL2000DGG,112 equivalent, key selection criteria include bidirectional clamp architecture, absence of direction pin, reference transistor configuration (SREF/DREF/GREF), flow-through SSOP/TSSOP48 layout, and compatibility with GTL, GTL+, LVTTL, TTL, and CMOS logic families.
Technical Context
The GTL2000DGG,112 implements Gunning Transceiver Logic – Transceiver Voltage Clamp (GTL-TVC) architecture using 22 matched NMOS pass transistors plus one reference pair (SREF/DREF/GREF). Translation direction is determined dynamically by relative voltage levels on Sn and Dn ports-no external direction signal required.
It operates in three modes: bi-directional (GREF tied to DREF, SREF set to low-side VCORE), unidirectional high-to-low (same biasing, no pull-up on Sn side), and unidirectional low-to-high (requires external pull-up on Dn side). Gate threshold control via GREF–SREF voltage differential (≥1.5 V recommended) sets clamping voltage and ensures reliable ON/OFF switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 22-bit bi-directional voltage translator with no direction pin |
| RON (typ) | 6.5 Ω - Enables low-voltage-drop signal pass-through for <15 mA channel current |
| tPLH/tPHL (typ) | 1.5 ns - Supports >500 MHz data rates in GTL/GTL+ applications |
| Voltage Range | 1.0 V to 5.0 V translation on both sides - Interoperates with GTL, LVTTL, TTL, and 5 V CMOS |
| ESD Rating | 2000 V HBM - Protects low-voltage processor I/O during hot insertion |
| Supply Requirement | No VCC pin - Powered entirely by signal rails; eliminates need for auxiliary power rail |
| Operating Temp | –40 °C to +85 °C - Validated for industrial ambient environments |
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 transistors and ESD protection network |
| 2 | SREF | Source terminal of reference transistor - sets maximum output voltage on Sn side |
| 3–24 | Sn (S1–S22) | Low-voltage side I/O ports - connect to 1.0–1.8 V processor core I/O |
| 25–46 | Dn (D1–D22) | High-voltage side I/O ports - interface with 2.5–5.0 V peripherals or buses |
| 47 | DREF | Drain terminal of reference transistor - tied to high-side VCC via 200 kΩ pull-up |
| 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 true bidirectional operation without control logic or timing constraints on direction signals |
| Flow-through pinout | Minimizes PCB trace length and crosstalk - Sn pins (3–24) and Dn pins (25–46) align linearly for straight routing |
| Hot-insertion support | Prevents bus contention and latch-up during live board insertion - critical for modular backplane systems |
| 5 V-tolerant Sn inputs | Allows safe connection to legacy 5 V peripherals without level-shifting buffers on Sn side |
| Matched transistor characteristics | Ensures uniform propagation delay (<0.5 ns skew) and voltage translation across all 22 channels |
Applications
| I²C Bus Translation | GTL/GTL+ to LVTTL Interface |
|---|---|
Use Scenario: Connecting a 1.2 V ARM processor's open-drain I²C port to a 3.3 V sensor hub or EEPROM. IC Role / Device Role / Timing Role: Bidirectional voltage clamp translating SDA/SCL signals while preserving I²C timing integrity and pull-up requirements. Use Value: Eliminates need for dual-supply translators or discrete MOSFET solutions; maintains sub-10 ns edge fidelity required for 400 kHz Fast-mode I²C. | Use Scenario: Interfacing a GTL+ chipset (1.2 V swing) with legacy LVTTL memory controllers (2.5 V/3.3 V). IC Role / Device Role / Timing Role: High-speed bidirectional translator maintaining GTL+ slew rate and noise margin while shifting logic thresholds. Use Value: Achieves <5 ns propagation delay with <0.35 V VOL - meets GTL+ specification for 100 MHz bus operation. |
| Processor Core-to-Chipset Bridge | Hot-Swappable Module Interface |
Use Scenario: Level-shifting between a 1.0 V ASIC core and a 5 V PCI Express companion chip's sideband signals. IC Role / Device Role / Timing Role: Unidirectional high-to-low translator protecting low-voltage core pins from 5 V overvoltage events. Use Value: Provides 5 V tolerance on Dn side and clamps Sn outputs to 1.0 V - prevents damage during power sequencing mismatches. | Use Scenario: Enabling hot-plug capability for mezzanine cards in telecom line cards with mixed-voltage backplanes. IC Role / Device Role / Timing Role: Bidirectional translator isolating card-side 1.5 V logic from shelf-side 3.3 V management bus during insertion/removal. Use Value: No power supply required and latch-up immunity ensure safe insertion under live power - validated per JESD22-A114 (2000 V HBM). |
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-bit translator; lower channel count; integrated auto-direction sensing; requires VCCA/VCCB supplies | Better suited for point-to-point, low-pin-count interfaces (e.g., UART, GPIO); not scalable to 22-bit buses | Select when compact size and automatic direction detection outweigh channel density and supply-free operation. |
| Texas Instruments TXS0108E | 8-bit translator; active push-pull outputs; requires dual supplies; higher standby current (10 µA vs. <1 µA) | Optimized for wide-bus, high-drive applications (e.g., SDIO, eMMC); lacks true clamp-based bidirectionality | Select when driving heavy capacitive loads (>30 pF) or requiring guaranteed high-level drive strength on both sides. |
Compared with NTB0102DP and TXS0108E, the GTL2000DGG,112 uniquely delivers 22-channel translation without direction control or external power, making it irreplaceable for high-density, supply-constrained GTL/GTL+/I²C backplane interfaces where pin efficiency and latch-up immunity are mandatory.
Availability
GTL2000DGG,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom module interconnects, and embedded processor I²C expansion requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for GTL2000DGG,112 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 company formed from the spin-off of Philips Semiconductors in 2006, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The GTL2000DGG,112 belongs to NXP's legacy GTL-TVC translator family, designed specifically for high-speed, supply-free voltage translation in mixed-voltage computing and communications infrastructure where reliability, ESD robustness, and minimal PCB footprint are critical.
FAQ
What is the function of the GREF pin on the GTL2000DGG,112?
The GREF pin is the gate terminal of the reference transistor that controls the ON/OFF state of all 22 pass transistors. It must be biased at least 1.5 V above SREF to ensure proper clamping behavior. In bi-directional mode, GREF is tied directly to DREF and pulled up to the high-side VCC (e.g., 3.3 V) via a 200 kΩ resistor. Incorrect GREF voltage causes incomplete turn-on or excessive VOL, compromising GTL2000DGG,112 translation accuracy.
Can the GTL2000DGG,112 translate between 1.0 V and 5.0 V in both directions simultaneously?
Yes - the GTL2000DGG,112 supports true simultaneous bi-directional translation between 1.0 V and 5.0 V, provided GREF and DREF are tied and pulled to 5.0 V, and SREF is set to 1.0 V. The device uses passive NMOS clamping: when a Sn pin is driven low, the corresponding Dn pin is pulled low; when a Dn pin is high, the Sn pin is clamped to SREF (1.0 V). This architecture enables real-time, contention-free bidirectional signaling without arbitration logic - a core capability of the GTL2000DGG,112.
Does the GTL2000DGG,112 require external pull-up resistors, and if so, where?
Yes - external pull-up resistors are required on the Dn side (high-voltage side) for uni-directional low-to-high translation and for bi-directional operation when Dn drives high. A 200 kΩ resistor from DREF to high-side VCC is mandatory to bias the reference transistor. Additional pull-ups (value depends on VCC and load capacitance) are needed on each Dn line to achieve full logic HIGH. Sn-side pull-ups are only required if the low-voltage driver is open-drain - the GTL2000DGG,112 itself provides no active drive.
What is the maximum current per channel the GTL2000DGG,112 can handle reliably?
The GTL2000DGG,112 supports up to ±128 mA per channel under absolute maximum conditions, but the recommended operating limit is 64 mA per channel to maintain VOL ≤ 350 mV and prevent thermal stress. At 15 mA (typical I²C bus current), RON yields ~260 mV drop - well within GTL/GTL+ specifications. Exceeding 64 mA risks exceeding junction temperature limits and degrading long-term reliability of the GTL2000DGG,112.
Is the GTL2000DGG,112 pin-compatible with other devices in the GTL2000 family?
Yes - the GTL2000DGG,112 (TSSOP48) shares identical pinout and electrical behavior with GTL2000DL (SSOP48), differing only in package dimensions and thermal characteristics. Both use SOT362-1 and SOT370-1 footprints respectively, with identical pin numbering, function mapping, and biasing requirements. This allows direct PCB substitution between packages without layout changes - a verified mechanical and functional equivalence for the GTL2000DGG,112 and GTL2000DL.
GTL2000DGG,112 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-TFSOP (0.240", 6.10mm Width)
GTL2000DGG,112 FAQ
1.How can I place an order for GTL2000DGG,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2000DGG,112 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,112 reliable?
The price and inventory of GTL2000DGG,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2000DGG,112 is usually 5 days.
3.What payment methods are accepted for GTL2000DGG,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2000DGG,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2000DGG,112?
GTL2000DGG,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2000DGG,112 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,112?
For technical support, including GTL2000DGG,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2000DGG,112 requirements.
6.How does Aetrix verify that GTL2000DGG,112 is sourced from the original manufacturer or authorized distributors?
All GTL2000DGG,112 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,112 meets industry standards.
7.What is the process for return or replacement of GTL2000DGG,112?
All GTL2000DGG,112 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2000DGG,112, 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,112 part is unused and in its original packaging.
Return procedure for GTL2000DGG,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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