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NXP Semiconductors GTL2005PW,118
- Part No.:
- GTL2005PW,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2005PW,118.pdf
- Description:
- IC TRANSLATOR BIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,770
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Product details
Overview
GTL2005PW,118 from NXP Semiconductors is a quad GTL/GTL+ to LVTTL/TTL bidirectional non-latched translating transceiver operating at 3.0–3.6 V supply, with 5 V-tolerant B-side I/O, 2.1 ns minimum propagation delay (B→A), and TSSOP14 package. It interfaces GTL/GTL+ buses (e.g., CPU address/data backplanes) with 3.3 V LVTTL/TTL logic in high-speed computing systems.
For engineers reviewing the GTL2005PW,118 datasheet, GTL2005PW,118 pinout, GTL2005PW,118 application, or GTL2005PW,118 equivalent, key selection criteria include bidirectional GTL-to-TTL translation capability, VREF-controlled threshold linearity down to 0.5 V, live-insertion support, and compliance with JESD78 latch-up and JESD22-A114 HBM ESD standards.
Technical Context
The GTL2005PW,118 implements a direction-controlled, non-latched bus interface where DIR pin selects signal flow: HIGH enables GTL sampling receiver mode (B→A), LOW enables TTL-to-GTL driver mode (A→B). Its A-side inputs/outputs reference VREF (0.5–1.8 V) for GTL−/GTL/GTL+ compatibility, while B-side operates with standard LVTTL thresholds and tolerates up to 5.5 V.
Propagation delays are asymmetric: B→A paths achieve ≤2.6 ns (tPHL), whereas A→B paths range 4.1–5.9 ns due to GTL output stage drive characteristics. Input capacitance is 2.3 pF (control pins) and 6.0 pF (B port), supporting high-frequency bus operation without excessive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3.0 V to 3.6 V - Ensures stable operation across industrial-grade 3.3 V rail tolerances. |
| B-Side Input Voltage | Up to 5.5 V - Allows direct connection to legacy 5 V TTL/CMOS outputs without level-shifting circuitry. |
| tPLH / tPHL (B→A) | 2.1 ns / 1.9 ns typical - Enables sub-500 MHz GTL bus sampling in high-speed backplane applications. |
| VREF Range | 0.5 V to 1.8 V - Configurable threshold for GTL− (0.6 V), GTL (0.8 V), or GTL+ (1.0 V) bus standards. |
| IOL / IOH (B port) | 128 mA sink / −64 mA source - Drives terminated GTL stubs with adequate current for signal integrity. |
| ESD Protection | 2000 V HBM, 150 V MM, 1000 V CDM - Meets JEDEC requirements for handling and board-level robustness. |
| Latch-up Immunity | >500 mA per JESD78 - Prevents destructive latch-up during hot-swap or transient overvoltage events. |
Pinout & Package
TSSOP14 package (SOT402-1), plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIR (Pin 1) | Direction control input | Active-HIGH selects B→A GTL sampling; active-LOW enables A→B TTL driving. |
| A0–A3 (Pins 2,3,5,6) | GTL-side I/O | Bidirectional GTL/GTL+ data lines referenced to VREF; tolerate VTT up to 3.6 V. |
| B0–B3 (Pins 13,12,10,9) | LVTTL/TTL-side I/O | 5 V-tolerant data lines compatible with 3.3 V LVTTL and legacy 5 V TTL logic levels. |
| VREF (Pin 4) | GTL reference voltage input | Defines GTL input thresholds; must be externally supplied between 0.5 V and 1.8 V. |
| VCC (Pin 14) | Positive supply | 3.0–3.6 V core supply; powers internal logic and B-side output stages. |
| GND (Pins 7,8,11) | Ground | Three dedicated ground pins minimize ground bounce and improve noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Quad bidirectional translation | Four independent GTL↔LVTTL channels enable compact replacement of discrete translators in multi-bit buses. |
| Live insertion/extraction support | IOFF leakage <±100 µA at VCC = 0 V allows safe hot-plug operation in modular backplane systems. |
| VREF-linear threshold control | VTH+ and VTH− track VREF across temperature (−40 °C to +85 °C), ensuring consistent noise margins. |
| Asymmetric propagation tuning | Faster B→A path (2.1 ns) optimizes GTL bus sampling; slower A→B path (4.1 ns) accommodates GTL output slew rate limits. |
| Robust I/O protection | 5 V-tolerant B-side inputs and ±128 mA B-port drive capability simplify interface to mixed-voltage subsystems. |
Applications
| Server Backplane Interface | CPU Address Bus Translation |
|---|---|
|
Use Scenario: Interfacing a 3.3 V CPU's GTL+ address bus to a 5 V legacy memory controller on a rack-mount server motherboard. IC Role / Device Role / Timing Role: GTL2005PW,118 acts as a direction-controlled, non-latched translator-sampling GTL+ addresses on rising clock edges and driving TTL-compatible signals to the memory controller. Use Value: Eliminates need for discrete resistor networks or dual-supply translators, reducing BOM count and PCB area while maintaining <5 ns timing budget. |
Use Scenario: Level-shifting between a GTL−-compliant chipset and LVTTL peripherals in a high-density embedded computing module. IC Role / Device Role / Timing Role: GTL2005PW,118 serves as a quad bidirectional bus interface, with DIR tied HIGH for GTL− sampling during read cycles and LOW for LVTTL-driven writes. Use Value: Supports VREF = 0.6 V for GTL− compliance and delivers 2.3 ns max tPHL, enabling >400 MHz effective bus throughput. |
| Hot-Pluggable I/O Module | Workstation Memory Subsystem |
|
Use Scenario: Enabling safe insertion/removal of PCIe expansion modules with GTL-based sideband signaling in enterprise workstations. IC Role / Device Role / Timing Role: GTL2005PW,118 provides live-insertion-capable translation for SMBus-like sideband control lines between GTL host and TTL module logic. Use Value: IOFF <±100 µA at VCC = 0 V prevents back-driving during hot-swap, and JESD78-rated latch-up immunity ensures field reliability. |
Use Scenario: Bridging GTL+ data strobes from a high-speed memory controller to LVTTL buffer ICs in dual-channel DDR2 memory subsystems. IC Role / Device Role / Timing Role: GTL2005PW,118 functions as a low-skew, quad strobe translator-converting GTL+ strobes (VREF = 1.0 V) into clean LVTTL edges with matched B→A delay. Use Value: 2.1 ns typical tPLH minimizes strobe-to-data skew, preserving setup/hold margins for 800 MT/s DDR2 operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GTL/GTL+ to LVTTL/TTL translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP GTL2014PW,118 | Lower propagation delay (1.4 ns B→A), optimized for GTL+ only (VREF fixed at 1.0 V), no GTL−/GTL support. | Better suited for high-frequency GTL+ links where VREF flexibility is unnecessary and sub-2 ns timing is critical. | Select GTL2014PW,118 when targeting GTL+ only and requiring faster sampling; GTL2005PW,118 remains preferred for multi-standard (GTL−/GTL/GTL+) adaptability. |
| Texas Instruments SN74GTLP2205PW | Same TSSOP14 package, identical DIR-controlled quad architecture, but rated for −40 °C to +125 °C and supports 3.3 V only (no 5 V tolerance on B-side). | Used in extended-temperature automotive or industrial control modules where 5 V tolerance is not required. | Choose SN74GTLP2205PW for extended temperature operation; GTL2005PW,118 is mandatory when interfacing with 5 V TTL sources. |
Compared with GTL2014PW,118 and SN74GTLP2205PW, the GTL2005PW,118 uniquely balances VREF programmability (0.5–1.8 V), 5 V-tolerant B-side I/O, and industrial temperature range (−40 °C to +85 °C), making it the only option supporting mixed GTL−/GTL/GTL+ buses with legacy 5 V logic integration.
Availability
GTL2005PW,118 is available at Aetrix Electronics and suitable for server backplane interfaces, CPU address bus translation, hot-pluggable I/O modules, and workstation memory subsystems requiring stable component supply and long-term industrial availability.
Supply support for GTL2005PW,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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and communication markets.
The GTL2005PW,118 belongs to NXP's GTL/GTL+ translator product line, designed specifically for high-speed, multi-standard bus bridging in computing infrastructure where voltage translation, timing precision, and system robustness are critical.
FAQ
What is the maximum VREF voltage supported by the GTL2005PW,118?
The GTL2005PW,118 supports VREF up to 1.8 V, as specified in the Recommended Operating Conditions table. Operation above this value may degrade input threshold linearity and violate absolute maximum ratings. The device is typically configured at 0.6 V (GTL−), 0.8 V (GTL), or 1.0 V (GTL+) depending on bus standard compliance requirements. Always verify VREF stability under load using the performance curves in Section 10.1 of the GTL2005PW,118 datasheet.
Can the GTL2005PW,118 interface directly with 5 V TTL outputs?
Yes, the GTL2005PW,118 B-side inputs tolerate up to 5.5 V, allowing direct connection to standard 5 V TTL outputs without external clamping or level-shifting. This is confirmed in the General Description and Quick Reference Data sections, where "LVTTL interface is tolerant up to 5.5 V" is explicitly stated. However, B-side outputs remain 3.3 V LVTTL-compliant and must not drive 5 V loads directly.
What is the purpose of the three GND pins on the GTL2005PW,118 TSSOP14 package?
The GTL2005PW,118 allocates Pins 7, 8, and 11 exclusively to GND to reduce ground impedance, suppress simultaneous switching noise, and improve signal integrity across all four bidirectional channels. This multi-GND layout is documented in the Pin Configuration diagram (Figure 3) and Pin Description table, and is essential for maintaining tight noise margins in high-speed GTL bus environments.
Does the GTL2005PW,118 support live insertion in backplane systems?
Yes, the GTL2005PW,118 supports live insertion/extraction, as confirmed in the Features section. Its IOFF (output OFF current) is limited to ±100 µA when VCC = 0 V, preventing back-driving of powered bus lines during hot-swap events. This capability is validated per JESD78 latch-up testing (>500 mA immunity) and is integral to its use in modular server and telecom chassis designs.
How does the DIR pin control data flow direction in the GTL2005PW,118?
The DIR pin on the GTL2005PW,118 determines translation direction: when DIR = HIGH, the device operates as a GTL-to-LVTTL sampling receiver (data flows B→A); when DIR = LOW, it functions as an LVTTL-to-GTL driver (data flows A→B). This behavior is defined in the Function Table (Table 4) and Logic Diagram (Figure 2), and is fundamental to its bidirectional bus interface role in synchronous systems.
GTL2005PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Mixed Signal
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- GTL
- Output Signal:
- LVTTL, TTL
- Output Type:
- Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP (0.173", 4.40mm Width)
GTL2005PW,118 FAQ
1.How can I place an order for GTL2005PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2005PW,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 GTL2005PW,118 reliable?
The price and inventory of GTL2005PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2005PW,118 is usually 5 days.
3.What payment methods are accepted for GTL2005PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2005PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2005PW,118?
GTL2005PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2005PW,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 GTL2005PW,118?
For technical support, including GTL2005PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2005PW,118 requirements.
6.How does Aetrix verify that GTL2005PW,118 is sourced from the original manufacturer or authorized distributors?
All GTL2005PW,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 GTL2005PW,118 meets industry standards.
7.What is the process for return or replacement of GTL2005PW,118?
All GTL2005PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2005PW,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 GTL2005PW,118 part is unused and in its original packaging.
Return procedure for GTL2005PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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