STMicroelectronics STA8089FGBDTR

Overview

STA8089FGBDTR from STMicroelectronics is a fully integrated, single-die GNSS receiver IC supporting GPS, Galileo, GLONASS, BeiDou, and QZSS constellations with 48 tracking + 2 fast-acquisition channels. It embeds RF front-end, ARM946 MCU (up to 196 MHz), 256 KB SRAM, 16 Mbit in-package SQI Flash, RTC, dual CAN, USB 2.0 full-speed PHY, and operates from -40°C to +85°C in automotive-grade environments.

For engineers reviewing the STA8089FGBDTR datasheet, STA8089FGBDTR pinout, STA8089FGBDTR application, or STA8089FGBDTR equivalent, key selection criteria include multi-constellation TTFF performance (<1 s hot, 30 s cold), embedded dead reckoning (TESEO-DRAW) support, VFQFPN56 package compatibility with STA8088FG, and dual-CAN/USB/I²C/UART peripheral integration for telematics and ADAS positioning systems.

Technical Context

The STA8089FGBDTR integrates a G3BB+ baseband processor with parallel correlator architecture enabling simultaneous multi-system signal acquisition and tracking. Its RF front-end uses direct-conversion architecture with integrated LNA and dual-path filtering for GPS/Galileo (1575.42 MHz → 4.092 MHz), GLONASS (1601.718 MHz → 8.57 MHz), and BeiDou (1561.098 MHz → 10.23 MHz).

The ARM946 subsystem runs embedded GNSS firmware without external memory, supports TESEO-DRAW dead reckoning via dedicated motion processing logic, and interfaces peripherals-including two CAN controllers compliant with ISO 11898-1-through APB bridges with configurable alternate functions per pin.

Key Specifications

Pinout & Package

STA8089FGBDTR is housed in a VFQFPN56 (7 × 7 × 1.0 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are grouped into power domains (VDDIO_R1/R2, VCC_RF, VINL/VINB), RF inputs (LNA_IN, XTAL_IN/OUT), communication interfaces (CAN0/CAN1, USB_DP/DM, UART0/2, SPI/SQI), and general-purpose I/O with multiple alternate functions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-constellation GNSS receiver applications.

Compared with u-blox UBX-M8030-KT and Qualcomm WGR7640, STA8089FGBDTR uniquely combines full multi-constellation support, embedded processing, and flash storage in a single 7×7 mm package - reducing system latency, bill-of-materials, and qualification effort for standalone positioning modules.

Availability

STA8089FGBDTR is available at Aetrix Electronics and suitable for automotive telematics, ADAS positioning modules, smart logistics trackers, and maritime navigation terminals requiring stable component supply across extended product lifecycles.

Supply support for STA8089FGBDTR 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, specializing in microcontrollers, sensors, power management, and automotive-grade ICs with broad industrial and automotive certifications.

STA8089FGBDTR belongs to the Teseo III family - designed specifically for high-reliability, multi-constellation GNSS applications where embedded processing, low-power operation, and automotive qualification are mandatory.

FAQ

Does STA8089FGBDTR support dead reckoning firmware out of the box?

Yes - the "BD" suffix in STA8089FGBDTR denotes factory-programmed TESEO-DRAW dead reckoning firmware. This enables seamless integration with external IMUs to maintain position during GNSS signal loss, without requiring host-side algorithm development or external memory loading.

What is the role of the dual CAN interfaces in this GNSS receiver?

The two CAN 2.0B controllers allow concurrent communication with vehicle networks: one port typically handles OBD-II diagnostics or ECU synchronization, while the other supports time-stamped sensor fusion (e.g., wheel speed or IMU data). Both operate independently with dedicated message buffers and hardware filtering.

Can STA8089FGBDTR operate without an external crystal oscillator?

No - it requires a 32.768 kHz crystal connected to RTC_XTI/RTC_XTO pins for real-time clock and low-power standby timing. The device does not support external clock input or internal RC oscillators for this function; omission prevents RTC operation and reliable wake-up from STANDBY mode.

How does the embedded 16 Mbit SQI Flash differ from standard SPI Flash in system design?

The in-package SQI Flash uses a 4-bit serial quad I/O interface, delivering ~4× faster read throughput than standard SPI. It is directly mapped into the ARM946's address space, enabling XIP (execute-in-place) firmware execution and eliminating boot ROM dependency - reducing boot time and external memory count.