STA1085ELA3S1 is a high-performance essential GNSS processor developed by STMicroelectronics, designed specifically for automotive positioning and navigation systems. It belongs to ST’s Telemaco series and combines automotive-grade reliability with advanced digital processing technologies for satellite-based positioning.
This processor supports more than one GNSS (GPS, Galileo, GLONASS, Beidou, and QZSS) and provides accurate and stable positioning in dynamic automotive environments.
📐 Technical specifications STA1085ELA3S1
Model STA1085ELA3S1
Manufacturer STMicroelectronics
GNSS satellite support GPS, Galileo, GLONASS, Beidou, QZSS
Architecture Integrated RISC core with hardware acceleration
Data interface SPI, I²C, UART, CAN, USB, I²S
Memory On-chip RAM, flash memory, external memory connection support via interface
Package TFBGA (thin ball grid array)
Temperature range -40 °C to +85 °C (vehicle temperature)
Functions GNSS base band signal processing, dead zone estimation, sensor integration
📄 Download the official STA1085 datasheet from ST
🌐 Key features STA1085ELA3S1
🛰️ Multi-GNSS support
The STA1085ELA3S1 can process signals from multiple satellite systems simultaneously, improving positioning accuracy and coverage in complex environments such as tunnels, urban canyons, or under bridges.
🚗 Automotive-grade reliability
This processor is compliant with automotive standards AEC-Q100 and is designed specifically to withstand harsh automotive conditions. It ensures stable performance in conditions of vibration, varying temperatures, and electrical interference.
🧭 Dead zone estimation and sensor integration
Supports integration with inertial sensors for dead zone estimation, ensuring accurate navigation even when GNSS signals are temporarily unavailable.
🧠 Advanced signal processing
It features a built-in module designed for GNSS signal processing, error correction, and multipath suppression, making it suitable for safety-critical automotive applications.
🔧 Typical applications
The STA1085ELA3S1 is used in various high-reliability integrated systems and is suitable for automotive applications:
1. Automotive navigation systems
Provides accurate and fast-response location data for integrated navigation systems and is particularly suitable for luxury and mid-range cars.
2. Telematics Control Unit (TCU)
Used in vehicle tracking, fleet management, and remote diagnostics, where positioning accuracy is critical.
3. Advanced Driver Assistance Systems (ADAS)
Supports sensor integration systems and combines GNSS, radar, laser, and camera to improve object detection and navigation capabilities in automated driving.
4. Smart Antennas
Provides an integrated and compact antenna system that combines basic GNSS signal processing in the vehicle and digital processing in a single unit.
🔗 Buy STA1085ELA3S1 from DRex Electronics
At DRex Electronics, we offer reliable and hard-to-find automotive IC chips, such as the STA1085ELA3S1. We work with original equipment manufacturers (OEMs), first-tier suppliers, and contract manufacturers to streamline the purchasing process and meet global production requirements.
- 📌 Discover STMicroelectronics components
- 🛒 Request a quote or information on STA1085ELA3S1 stock
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🔍 Development tools and resources
To support faster development and integration, ST offers a wide range of software and hardware tools:
- GNSS evaluation boards and modules
- ST automotive GNSS software and SDK
- Telemaco3 system overview
🔄 Similar and complementary products
If you are designing an automotive navigation system and need a processor similar to the STA1085ELA3S1, we recommend you try the following products:
- STA9100 – New generation GNSS processor with enhanced AI capabilities at the edge
- STA8090GA – Low-power integrated GNSS chip
- Texas Instruments TDA3x series – Suitable for sensor integration and visual processing
These products can be purchased or found through DRex Strategic Buying Solutions.
