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NXP Semiconductors GTL2014PW,118
- Part No.:
- GTL2014PW,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
GTL2014PW,118.pdf
- Description:
- IC TRANSLATOR BIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,873
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Product details
Overview
GTL2014PW,118 from NXP Semiconductors is a 4-bit bidirectional LVTTL-to-GTL translating transceiver in TSSOP14 package, supporting 3.0–3.6 V operation with 5.5 V-tolerant LVTTL inputs and 3.6 V-tolerant GTL I/O. It enables interface between 3.3 V LVTTL logic and GTL-/GTL/GTL+ buses (Vref adjustable 0.5–VCC/2), used in CPU bus bridging and high-speed memory subsystems.
For engineers reviewing the GTL2014PW,118 datasheet, GTL2014PW,118 pinout, GTL2014PW,118 application, or GTL2014PW,118 equivalent, key selection factors include direction-controlled bidirectional translation, Vref tracking down to 0.5 V for low-voltage CPUs, asymmetric propagation delays (2.8 ns An→Bn vs. 5.2 ns Bn→An), GTL input threshold tolerance (±50 mV around Vref), and compatibility with legacy GTL2005 layouts via pin-to-pin backward compatibility.
Technical Context
The GTL2014PW,118 implements a dual-voltage domain architecture: LVTTL-side pins (A0–A3, DIR) operate at 3.0–3.6 V with 5.5 V-tolerant inputs, while GTL-side pins (B0–B3) reference an externally supplied VREF (0.5–1.1 V) and tolerate up to 3.6 V. Direction control (DIR) selects signal flow-HIGH enables A→B sampling receiver mode; LOW enables B→A driver mode.
It supports partial power-down (GND pins remain active during standby), meets JESD22-A114 (2000 V HBM) and JESD22-C101 (1000 V CDM) ESD ratings, and provides latch-up immunity >500 mA per JESD78. Propagation delay asymmetry arises from internal level-shifting circuitry optimized for GTL bus termination voltage (VTT) alignment.
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 supply tolerances. |
| LVTTL input tolerance | Up to 5.5 V - Allows direct connection to legacy TTL or 5 V CMOS without external level shifters. |
| GTL I/O voltage tolerance | Up to 3.6 V - Supports higher-VTT open-drain GTL+ applications (e.g., VTT = 1.5 V). |
| VREF range | 0.5 V to VCC/2 - Enables compatibility with low-voltage CPUs (e.g., 0.5 V VREF for 1.0 V core logic). |
| tPLH / tPHL (A→B) | 2.8 ns / 3.4 ns @ CL = 50 pF - Fast forward-path delay critical for CPU address/data sampling timing. |
| tPLH / tPHL (B→A) | 5.2 ns / 4.9 ns @ CL = 50 pF - Slower reverse path reflects GTL bus slew-rate constraints and level-shifting overhead. |
| Input capacitance (A port) | 4.6–6 pF - Low loading preserves signal integrity on LVTTL buses driving multiple receivers. |
Pinout & Package
TSSOP14 package (SOT402-1), 4.4 mm body width, 0.65 mm lead pitch, 1.1 mm max height - compatible with standard SMT reflow processes and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIR (Pin 1) | Direction control input | LVTTL-level signal selecting A→B (DIR = HIGH) or B→A (DIR = LOW) data flow; no pull-up/down required. |
| VCC (Pin 14) | Positive supply | 3.0–3.6 V power for internal logic and LVTTL outputs; decoupling capacitor required near pin. |
| GND (Pins 7, 8, 11) | Ground reference | Three dedicated ground pins minimize ground bounce and improve noise immunity in high-speed switching. |
| VREF (Pin 4) | GTL reference voltage | Externally supplied 0.5–1.1 V reference setting GTL input thresholds (Vth+ ≈ VREF + 50 mV, Vth− ≈ VREF − 50 mV). |
| A0–A3 (Pins 9, 12, 10, 13) | LVTTL I/O ports | Bidirectional 3.3 V logic interfaces with 5.5 V-tolerant inputs; outputs not 5.5 V tolerant. |
| B0–B3 (Pins 2, 3, 5, 6) | GTL I/O ports | Bidirectional GTL bus interfaces operating up to 3.6 V; require external VTT termination resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable direction control | Single DIR pin enables runtime selection between LVTTL-to-GTL driver and GTL-to-LVTTL receiver modes without hardware change. |
| VREF scalability | VREF adjustable from 0.5 V to VCC/2 supports evolving low-voltage CPU architectures while maintaining GTL bus compatibility. |
| Asymmetric propagation tuning | Faster A→B path (2.8 ns) optimizes CPU read cycles; slower B→A path (5.2 ns) accommodates GTL bus rise/fall time limitations. |
| Partial power-down capability | Functional operation maintained with VCC applied while unused sections remain inactive, reducing system standby current. |
| Robust ESD/latch-up protection | 2000 V HBM and 1000 V CDM ESD ratings plus >500 mA latch-up immunity ensure reliability in handling and board-level operation. |
Applications
| Server Memory Subsystem | CPU Bus Bridging |
|---|---|
Use Scenario: Interfacing a 3.3 V LVTTL memory controller with a GTL+ backplane operating at VTT = 1.5 V and VREF = 1.0 V. IC Role / Device Role / Timing Role: GTL2014PW,118 acts as a bidirectional level translator, converting LVTTL address/data signals to GTL+ levels for transmission and sampling GTL+ responses back into LVTTL logic. Use Value: Enables use of high-speed GTL+ signaling on memory buses while preserving existing LVTTL controller design, with propagation delays meeting JEDEC DDR timing budgets. |
Use Scenario: Connecting a low-voltage CPU core (VREF = 0.55 V) to a GTL bus for cache coherency traffic. IC Role / Device Role / Timing Role: GTL2014PW,118 serves as a sampling receiver during CPU read operations (DIR = HIGH), capturing GTL bus states and translating them to LVTTL for core logic evaluation. Use Value: VREF tracking down to 0.5 V ensures accurate GTL input thresholds at ultra-low CPU voltages, preventing metastability in cache snoop responses. |
| Workstation I/O Expansion | Industrial Control Backplane |
Use Scenario: Adding GTL-compatible peripheral slots to a 3.3 V LVTTL-based workstation motherboard. IC Role / Device Role / Timing Role: GTL2014PW,118 operates as an LVTTL-to-GTL driver (DIR = LOW) to drive expansion bus signals, and as a receiver for status feedback. Use Value: Bidirectional operation eliminates need for separate transmit/receive translators, reducing component count and layout complexity on dense backplane interfaces. |
Use Scenario: Isolating GTL bus segments in a modular PLC backplane where mixed-voltage modules require clean signal translation. IC Role / Device Role / Timing Role: GTL2014PW,118 provides galvanically isolated signal coupling between LVTTL control modules and GTL fieldbus segments via proper VREF/VTT decoupling. Use Value: 3.6 V GTL I/O tolerance allows safe operation in noisy industrial environments with transient overvoltage on termination rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVTTL-to-GTL transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP GTL2005PW,118 | VREF linearity degrades below 0.8 V; shorter propagation delays (A→B: 2.2 ns); not rated for VREF < 0.8 V. | Not suitable for sub-0.8 V CPU VREF targets; better for legacy GTL systems with fixed 0.9 V VREF. | Select GTL2005PW,118 only when VREF ≥ 0.8 V and minimal tPD is prioritized over low-voltage flexibility. |
| ON Semiconductor NB3N502DR2G | Fixed 1.2 V GTL reference; unidirectional (LVTTL-to-GTL only); no DIR pin; different pinout (SOIC8). | Lacks bidirectional capability and VREF adjustability; requires external direction logic and separate receiver for reverse path. | Choose NB3N502DR2G only for cost-sensitive, unidirectional GTL driver applications where VREF = 1.2 V is acceptable. |
Compared with GTL2014PW,118, GTL2005PW,118 offers faster timing but sacrifices low-VREF support, while NB3N502DR2G reduces functionality to unidirectional operation with fixed reference-making GTL2014PW,118 the sole option for scalable, bidirectional, sub-0.8 V VREF GTL interfacing.
Availability
GTL2014PW,118 is available at Aetrix Electronics and suitable for server memory subsystems, CPU bus bridging, workstation I/O expansion, and industrial control backplanes requiring stable component supply across extended product lifecycles.
Supply support for GTL2014PW,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 infrastructure markets.
The GTL2014PW,118 belongs to NXP's legacy logic translation portfolio, designed specifically to bridge voltage-domain mismatches between 3.3 V LVTTL controllers and GTL-family high-speed parallel buses in computing and networking equipment.
FAQ
What is the minimum VREF voltage supported by the GTL2014PW,118?
The GTL2014PW,118 supports VREF down to 0.5 V, enabling direct interface with modern low-voltage CPUs whose reference voltage has scaled below 0.8 V. This is a key differentiator from the GTL2005PW,118, which exhibits degraded linearity below 0.8 V. Operation at 0.5 V VREF maintains valid GTL input thresholds (Vth+ ≈ 0.55 V, Vth− ≈ 0.45 V) across the full temperature range.
Can the GTL2014PW,118 be used with 5 V LVTTL outputs?
No-the GTL2014PW,118 LVTTL outputs (A0–A3) are rated for 3.0–3.6 V operation only and are not 5.5 V tolerant. While its LVTTL *inputs* tolerate up to 5.5 V, connecting 5 V outputs to A-port pins risks damage. For 5 V output interfacing, external level-shifting circuitry or a different device with 5 V-tolerant outputs is required.
Is the GTL2014PW,118 pin-to-pin compatible with the GTL2005PW,118?
Yes-the GTL2014PW,118 is pin-to-pin backward compatible with the GTL2005PW,118, though port labeling is interchanged (A/B port assignments are swapped). This allows drop-in replacement in existing GTL2005 layouts, provided VREF is adjusted to leverage the GTL2014PW,118's extended low-voltage capability and timing characteristics are verified in the target application.
What is the maximum VTT voltage the GTL2014PW,118 can handle on its B-port pins?
The GTL2014PW,118 B-port pins (B0–B3) tolerate up to 3.6 V, allowing use with GTL+ configurations where VTT = 1.5 V or higher. However, the external termination resistor must be sized so that the maximum LOW-level output current (IOL = 80 mA per B-port pin) is not exceeded-typically limiting practical VTT to ≤3.6 V with appropriate RTERM selection per JEDEC GTL specifications.
Does the GTL2014PW,118 support partial power-down mode?
Yes-the GTL2014PW,118 supports partial power-down: it remains functional with VCC applied while unused inputs are held static (HIGH or LOW), minimizing quiescent current. The device draws only 4–10 mA ICC under recommended operating conditions, and ΔICC adds ≤500 μA per actively driven input, making it suitable for power-constrained embedded systems.
GTL2014PW,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:
- LVTTL
- Output Signal:
- GTL
- Output Type:
- Open Drain
- 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)
GTL2014PW,118 FAQ
1.How can I place an order for GTL2014PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for GTL2014PW,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 GTL2014PW,118 reliable?
The price and inventory of GTL2014PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GTL2014PW,118 is usually 5 days.
3.What payment methods are accepted for GTL2014PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GTL2014PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GTL2014PW,118?
GTL2014PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GTL2014PW,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 GTL2014PW,118?
For technical support, including GTL2014PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GTL2014PW,118 requirements.
6.How does Aetrix verify that GTL2014PW,118 is sourced from the original manufacturer or authorized distributors?
All GTL2014PW,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 GTL2014PW,118 meets industry standards.
7.What is the process for return or replacement of GTL2014PW,118?
All GTL2014PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with GTL2014PW,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 GTL2014PW,118 part is unused and in its original packaging.
Return procedure for GTL2014PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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