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Texas Instruments SN74GTL2014PWR
- Part No.:
- SN74GTL2014PWR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
SN74GTL2014PWR.pdf
- Description:
- IC TRANSLATOR BIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74GTL2014PWR from Texas Instruments is a 4-channel bidirectional LVTTL-to-GTL transceiver in a 14-pin TSSOP package, operating from 3.0 V to 3.6 V supply, supporting GTL–/GTL/GTL+ bus voltages up to 3.6 V and LVTTL inputs tolerant to 5.5 V. It enables interface between Xeon processor GTL I/O and 3.3-V LVTTL chipsets in server memory subsystems.
For engineers reviewing the SN74GTL2014PWR datasheet, SN74GTL2014PWR pinout, SN74GTL2014PWR application, or SN74GTL2014PWR equivalent, key selection criteria include direction-controlled bidirectional translation, VREF-adjustable threshold (0.5 V–1.1 V), 5.5-V-tolerant LVTTL inputs, 3.6-V GTL I/O tolerance, and propagation delays as low as 2.8 ns (A→B) at 3.3 V.
Technical Context
The SN74GTL2014PWR implements a dual-voltage domain transceiver architecture with independent LVTTL (A-port) and GTL (B-port) interfaces, controlled by a single DIR pin that selects translation direction: DIR = GND enables GTL→LVTTL sampling; DIR = VCC enables LVTTL→GTL driving. Its GTL I/O supports open-drain operation with pull-up to VTT ≤ 3.6 V.
VREF sets input thresholds for the GTL port (VTH+ ≈ VREF + 50 mV, VTH− ≈ VREF − 50 mV), enabling compliance across GTL– (0.9 V), GTL (1.2 V), and GTL+ (1.5 V) standards. The device integrates ESD protection (2000 V HBM, 1000 V CDM) and latch-up immunity (>500 mA per JESD78), and is characterized from –40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 3.0 V to 3.6 V - ensures compatibility with standard 3.3-V LVTTL systems and stable GTL translation performance |
| LVTTL Input Voltage Tolerance | Up to 5.5 V - allows direct connection to legacy TTL or 5-V CMOS logic without level-shifting circuitry |
| GTL I/O Voltage Range | 0 V to 3.6 V - supports open-drain GTL–/GTL/GTL+ buses with termination voltages up to 3.6 V |
| VREF Adjustment Range | 0.5 V to 1.1 V - enables precise threshold tuning for low-voltage CPU interfaces and multiple GTL variants |
| Propagation Delay (A→B) | 2.8 ns (min) at 3.3 V - delivers high-speed data transfer suitable for 100-MHz GTL bus applications |
| ESD Protection | 2000 V HBM, 1000 V CDM - meets industrial handling requirements and reduces board-level ESD mitigation complexity |
| Operating Temperature | –40°C to +85°C - qualified for use in server, base station, and wireline communication equipment |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm, 1.2 mm max height), lead finish NIPDAU/SN, moisture sensitivity level 1 (260°C peak reflow), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A3 | LVTTL data I/O | Bidirectional 3.3-V LVTTL interface pins tolerant to 5.5 V when inputs; drive LVTTL levels when outputs |
| B0–B3 | GTL data I/O | Bidirectional GTL–/GTL/GTL+ interface pins operating up to 3.6 V; require external pull-up for open-drain operation |
| DIR | Direction control input | LVTTL-level signal: low = GTL→LVTTL translation; high = LVTTL→GTL translation |
| VREF | GTL reference voltage | Analog input setting GTL input thresholds (VTH± ≈ VREF ± 50 mV); must be decoupled with 0.1-µF capacitor |
| VCC | Supply voltage | 3.0–3.6 V power for internal logic and LVTTL output drivers |
| GND | Ground | Three dedicated ground pins (pins 7, 11, 13) minimize noise coupling and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| 5.5-V-tolerant LVTTL inputs | Enables direct interfacing with 5-V TTL/CMOS without external clamping or resistors, reducing BOM count |
| VREF-scalable GTL thresholds | Supports GTL– (0.9 V), GTL (1.2 V), and GTL+ (1.5 V) standards via single analog reference, simplifying multi-standard designs |
| Partial power-down capability | Allows VCC = 0 V while GTL I/O remains functional under VTT bias, supporting hot-swap and low-power standby modes |
| Integrated ESD and latch-up protection | Eliminates need for discrete TVS diodes on A/B ports and meets JESD78 latch-up immunity >500 mA |
| Low propagation delay (2.8 ns min) | Meets timing budgets for high-speed server memory interconnects and 100-MHz GTL bus operation |
Applications
| Server Memory Subsystem | Base Station Backplane Interface |
|---|---|
Use Scenario: Interfacing Xeon processor GTL I/O with DDR memory controller LVTTL signals in 1U/2U rack servers. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing direction-controlled data flow between GTL and LVTTL domains during read/write cycles. Use Value: Enables direct integration without discrete level shifters, reduces PCB area by 30% vs. discrete solutions, and maintains <3 ns skew across all four channels. |
Use Scenario: Bridging FPGA-based GTL control plane with LVTTL-configured PHY modules in LTE/5G macro base stations. IC Role / Device Role / Timing Role: GTL-to-LVTTL translator synchronizing configuration register access and status reporting across voltage domains. Use Value: Supports hot-plug detection via 5.5-V-tolerant A-port inputs and meets -40°C to +85°C ambient requirement without derating. |
| Wireline Communication Line Card | Industrial Embedded Control Backplane |
Use Scenario: Connecting ASIC GTL management bus to LVTTL-based monitoring microcontrollers in optical transport network (OTN) line cards. IC Role / Device Role / Timing Role: Unidirectional (GTL→LVTTL) translator converting bus status signals into MCU-readable logic levels. Use Value: VREF-adjustable thresholds ensure reliable sampling across varying GTL termination voltages (0.9–1.5 V), eliminating firmware calibration. |
Use Scenario: Enabling LVTTL FPGA I/O to drive GTL-compatible industrial sensors and actuators in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: LVTTL-to-GTL translator providing open-drain GTL outputs compatible with legacy sensor bus topologies. Use Value: 3.6-V GTL I/O tolerance allows safe operation with 3.3-V or 2.5-V VTT supplies, avoiding overvoltage risk in mixed-voltage backplanes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74GTL1621DPRE | 16-bit, 56-pin SSOP; higher channel count, wider VREF range (0.3 V–1.5 V); no 5.5-V LVTTL tolerance | Suitable for high-density backplane translation but requires PCB redesign and lacks 5-V input robustness | Select when scaling beyond 4 channels and VREF flexibility outweighs input voltage tolerance needs |
| SN74AVC4T245PW | 4-bit, dual-supply (1.2–3.6 V), no GTL-specific thresholds; supports standard CMOS/LVTTL only; lower ESD rating (1500 V HBM) | Applicable for generic LVTTL↔LVCMOS translation but cannot meet GTL–/GTL/GTL+ voltage threshold specs | Choose only for non-GTL applications where GTL compliance is not required and cost is primary driver |
Compared with SN74GTL2014PWR, SN74GTL1621DPRE offers greater channel density but sacrifices 5.5-V input tolerance and increases layout complexity, while SN74AVC4T245PW lacks GTL-specific VREF control and fails to meet GTL–/GTL/GTL+ threshold accuracy-making SN74GTL2014PWR the only option meeting full GTL specification compliance with industrial-grade robustness.
Availability
SN74GTL2014PWR is available at Aetrix Electronics and suitable for server memory subsystems, base station backplanes, and wireline communication line cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SN74GTL2014PWR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of experience in high-reliability interface ICs for computing and communications infrastructure.
The SN74GTL2014PWR belongs to TI's GTL translator product line, engineered specifically for high-speed, low-skew voltage translation between Xeon-class processors and LVTTL peripherals in mission-critical server and telecom applications.
FAQ
What is the maximum input voltage the LVTTL ports of SN74GTL2014PWR can tolerate?
The LVTTL input ports (A0–A3 and DIR) of SN74GTL2014PWR are rated for up to 5.5 V, allowing direct connection to 5-V TTL or CMOS logic without external clamping. This tolerance applies only to inputs-not outputs-and is explicitly specified in the Absolute Maximum Ratings table of the SN74GTL2014PWR datasheet.
Does SN74GTL2014PWR support GTL–, GTL, and GTL+ standards simultaneously?
Yes, SN74GTL2014PWR supports all three GTL variants through VREF adjustment: GTL– (VREF = 0.6 V), GTL (VREF = 0.8 V), and GTL+ (VREF = 1.0 V). The device's input thresholds track VREF ±50 mV, ensuring compliance with JEDEC GTL specifications across the full range without hardware changes.
Can SN74GTL2014PWR operate with VCC = 0 V while maintaining GTL I/O functionality?
Yes, SN74GTL2014PWR supports partial power-down: when VCC = 0 V, the GTL I/O pins (B0–B3) remain functional under VTT bias (≤3.6 V), enabling hot-swap and low-power standby modes. However, LVTTL I/O (A0–A3) and DIR become inactive in this state.
What is the recommended decoupling for VREF on SN74GTL2014PWR?
Texas Instruments recommends a 0.1-µF ceramic capacitor placed as close as possible to the VREF pin of SN74GTL2014PWR to suppress noise and stabilize the reference voltage. This is critical for maintaining accurate GTL input thresholds and minimizing jitter in high-speed applications.
Is SN74GTL2014PWR pin-compatible with other GTL translators in TI's portfolio?
No, SN74GTL2014PWR is not pin-compatible with other TI GTL translators such as SN74GTL1621 or SN74GTL2002 due to differences in pin count, function assignment (e.g., dedicated VREF vs. shared control), and package type. Its 14-pin TSSOP layout is unique to the GTL2014 family.
SN74GTL2014PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74GTL
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
SN74GTL2014PWR FAQ
1.How can I place an order for SN74GTL2014PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74GTL2014PWR 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 SN74GTL2014PWR reliable?
The price and inventory of SN74GTL2014PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74GTL2014PWR is usually 5 days.
3.What payment methods are accepted for SN74GTL2014PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74GTL2014PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74GTL2014PWR?
SN74GTL2014PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74GTL2014PWR 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 SN74GTL2014PWR?
For technical support, including SN74GTL2014PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74GTL2014PWR requirements.
6.How does Aetrix verify that SN74GTL2014PWR is sourced from the original manufacturer or authorized distributors?
All SN74GTL2014PWR 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 SN74GTL2014PWR meets industry standards.
7.What is the process for return or replacement of SN74GTL2014PWR?
All SN74GTL2014PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74GTL2014PWR, 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 SN74GTL2014PWR part is unused and in its original packaging.
Return procedure for SN74GTL2014PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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