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STMicroelectronics X-NUCLEO-GNSS1A1
- Part No.:
- X-NUCLEO-GNSS1A1
- Manufacturer:
- STMicroelectronics
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
X-NUCLEO-GNSS1A1.pdf
- Description:
- GNSS EXPANSION BOARD BASED ON TE
- Quantity:
- Payment:
- Shipping:
Inventory:1,209
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Product details
Overview
X-NUCLEO-GNSS1A1 from STMicroelectronics is an Arduino UNO R3- and STM32 Nucleo-compatible GNSS expansion board based on the Teseo-LIV3F module, delivering standalone GPS/Galileo/BeiDou/GLONASS positioning with -162 dBm indoor tracking sensitivity, 26 MHz TCXO timing reference, and integrated 32 kHz RTC for fast time-to-first-fix. It supports UART and I²C host interfaces, configurable 1PPS timepulse, and EXTINT wakeup, enabling precise location acquisition in portable navigation and asset tracking systems.
For engineers reviewing the X-NUCLEO-GNSS1A1 datasheet, X-NUCLEO-GNSS1A1 pinout, X-NUCLEO-GNSS1A1 application, or X-NUCLEO-GNSS1A1 equivalent, key selection considerations include its dual-interface connectivity (UART/I²C), battery-backed RTC support, SMA antenna interface, on-board LNA+SAW RF front-end, and compatibility with STM32Cube X-CUBE-GNSS1 firmware stack for autonomous GNSS operation without external memory.
Technical Context
The board hosts the Teseo-LIV3F module-a compact 9.7 × 10.1 mm GNSS receiver IC integrating a TeseoIII single-die positioning engine, 26 MHz TCXO for ±0.5 ppm stability over -40°C to +85°C, and dedicated 32 kHz RTC oscillator to reduce TTFF. It operates autonomously using embedded X-CUBE-GNSS1 firmware for acquisition, tracking, navigation, and NMEA output.
Interface translation is handled by level-shifting ICs (TXB0101DCK, TXS0102) supporting 3.3 V / 5 V I/O domains; RF path includes BGA824N6 LNA, SAW filter, ESD protection (ESDARF02-1BU2CK), and SMA female connector. Power management uses TPS22943 load switch and CR2032 battery holder for backup supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| GNSS Constellations | GPS, Galileo, BeiDou, GLONASS - enables global multi-constellation positioning with improved accuracy and availability in urban canyons. |
| Tracking Sensitivity | -162 dBm - allows reliable indoor position lock under weak-signal conditions without assisted data. |
| Timing Reference | 26 MHz TCXO (±0.5 ppm) - ensures stable frequency control across temperature, critical for low-drift PVT computation. |
| Real-Time Clock | 32 kHz dedicated oscillator - reduces cold/warm start TTFF by maintaining time continuity during power cycles. |
| Host Interfaces | UART (TTL-level) and I²C - provides flexible microcontroller integration with standard serial protocols and minimal pin count. |
| Antenna Interface | SMA female connector with integrated LNA and SAW filter - supports external active/passive antennas while rejecting out-of-band interference. |
| Operating Voltage | 3.3 V or 5 V logic supply - compatible with both STM32 Nucleo 3.3 V domains and Arduino UNO 5 V systems via level shifters. |
| Temperature Range | -40°C to +85°C - validated for industrial-grade deployment in outdoor and mobile embedded environments. |
Availability
X-NUCLEO-GNSS1A1 is available at Aetrix Electronics and suitable for portable navigation devices, fleet telematics units, precision agriculture sensors, and IoT asset trackers requiring stable component supply, rapid prototyping enablement, and long-term design-in support.
Supply support for X-NUCLEO-GNSS1A1 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, MEMS, and power solutions for automotive, industrial, and consumer applications.
The X-NUCLEO series targets rapid STM32-based prototyping, with X-NUCLEO-GNSS1A1 specifically engineered to simplify GNSS integration into embedded systems using standardized form factors and STM32Cube software ecosystem support.
FAQ
Does X-NUCLEO-GNSS1A1 require external flash or RAM to operate?
No. The onboard Teseo-LIV3F module runs fully autonomous GNSS firmware (X-CUBE-GNSS1) stored in internal ROM, performing acquisition, tracking, navigation, and NMEA output without external memory. Only host MCU resources are needed for serial communication and configuration.
What antenna types are supported?
The board accepts standard 50 Ω GNSS antennas via its SMA female connector. It supports both active antennas (with bias-T power injection through VCC_RF) and passive antennas. The integrated LNA and SAW filter optimize RF signal integrity for either type across GPS L1, Galileo E1, and BeiDou B1 bands.
Can the 1PPS output be used for time synchronization?
Yes. The configurable digital I/O timepulse (labeled PPS on schematics) delivers a precise 1 Hz pulse aligned to UTC second boundaries, derived directly from GNSS solution timing. It supports TTL-level output and can drive microcontroller input capture peripherals for sub-millisecond time-stamping applications.
Is battery backup mandatory for RTC operation?
No, but recommended. The CR2032 holder powers the 32 kHz RTC oscillator during main power loss, preserving time and ephemeris data to accelerate warm/cold starts. Without battery, RTC resets on power cycle, increasing TTFF from ~15 s (warm) to ~35 s (cold) per ST documentation.
X-NUCLEO-GNSS1A1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Receiver, GPS
- Frequency:
- 1.575GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- TESEO-LIV3F
X-NUCLEO-GNSS1A1 FAQ
1.How can I place an order for X-NUCLEO-GNSS1A1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X-NUCLEO-GNSS1A1 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 X-NUCLEO-GNSS1A1 reliable?
The price and inventory of X-NUCLEO-GNSS1A1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X-NUCLEO-GNSS1A1 is usually 5 days.
3.What payment methods are accepted for X-NUCLEO-GNSS1A1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X-NUCLEO-GNSS1A1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X-NUCLEO-GNSS1A1?
X-NUCLEO-GNSS1A1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X-NUCLEO-GNSS1A1 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 X-NUCLEO-GNSS1A1?
For technical support, including X-NUCLEO-GNSS1A1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X-NUCLEO-GNSS1A1 requirements.
6.How does Aetrix verify that X-NUCLEO-GNSS1A1 is sourced from the original manufacturer or authorized distributors?
All X-NUCLEO-GNSS1A1 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 X-NUCLEO-GNSS1A1 meets industry standards.
7.What is the process for return or replacement of X-NUCLEO-GNSS1A1?
All X-NUCLEO-GNSS1A1 units undergo pre-shipment inspection (PSI). If there is an issue with X-NUCLEO-GNSS1A1, 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 X-NUCLEO-GNSS1A1 part is unused and in its original packaging.
Return procedure for X-NUCLEO-GNSS1A1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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