STMicroelectronics STA8088FGTR

Overview

STA8088FGTR from STMicroelectronics is a fully integrated GNSS System-on-Chip receiver IC supporting GPS, Galileo, Glonass, and QZSS constellations with 32 tracking + 2 fast-acquisition channels, -162 dBm indoor sensitivity (tracking), <1 s hot-start TTFF, and embedded 16 Mbit SQI Flash memory. It integrates an ARM946E-S MCU (208 MHz), dual CAN interfaces, USB 2.0 full-speed PHY, RTC, watchdog timer, and three on-chip voltage regulators - deployed in handheld computers, sports accessories, and data loggers.

For engineers reviewing the STA8088FGTR datasheet, STA8088FGTR pinout, STA8088FGTR application, or STA8088FGTR equivalent, key selection criteria include multi-constellation baseband performance, embedded Flash memory elimination of external storage, dual-CAN support for automotive telematics integration, and VFQFPN56 package compatibility with space-constrained PCB layouts.

Technical Context

The STA8088FGTR implements a triple-constellation GNSS baseband processor with dedicated IF paths for GPS/Galileo/QZSS and Glonass, enabling concurrent signal acquisition and tracking across all four systems. Its RF front-end includes an integrated LNA, mixer, VCO, and RF ADC, all powered by dedicated low-noise analog supplies (VRF12_LNA, VRF12_RFA, etc.) referenced to separate ground domains.

It features a hierarchical power architecture: three embedded regulators (HPREG, LPREG, BKREG) supply core logic (1.2 V), I/O rings (1.8 V / 3.3 V), and backup domain (1.2 V), while allowing direct 1.2 V core supply bypass to disable regulators and reduce quiescent current. The ARM946E-S core runs at up to 208 MHz with 64 KB I-TCM and 8 KB D-TCM, executing positioning firmware entirely from in-package Flash without external memory.

Key Specifications

Pinout & Package

STA8088FGTR is housed in a VFQFPN56 (7 mm × 7 mm × 0.85 mm, 0.4 mm pitch) thermally enhanced package with exposed pad (EP) for GND. Pin functions are grouped into power domains (VDD12_MVR, VDD18_MVR, VRF12_LNA, etc.), main control (RSTn, STDBYn, WAKEUP), RF front-end (LNA_IN, LNA_OUT, XTAL_In), and multifunction I/O ports (Port 0, Port 1).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar GNSS SoC applications.

Compared with UBX-M8030-KT and WGR7640, STA8088FGTR uniquely combines multi-constellation GNSS, ARM946 application processing, dual CAN, and in-package Flash in a 7×7 mm VFQFPN - making it optimal for self-contained, cost-sensitive, CAN-connected portable navigation systems where external memory and host processors must be minimized.

Availability

STA8088FGTR is available at Aetrix Electronics and suitable for handheld navigation devices, sports wearables, automotive telematics units, and industrial data loggers requiring stable component supply, long-term lifecycle support, and RoHS-compliant ECOPACK® packaging.

Supply support for STA8088FGTR 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, sensors, power management ICs, and automotive-grade components for industrial, consumer, and automotive markets.

The STA8088FGTR belongs to ST's STA8000 series of GNSS System-on-Chip receivers, engineered specifically for compact, low-power, multi-constellation positioning applications where integration, BOM reduction, and automotive-ready interfaces (CAN, USB) are critical design requirements.

FAQ

What GNSS constellations does the STA8088FGTR support, and how does its multi-system capability improve positioning accuracy?

The STA8088FGTR supports GPS, Galileo, Glonass, and QZSS simultaneously. Its 32-channel baseband processor enables concurrent satellite tracking across all four systems, increasing visible satellite count in obstructed environments (e.g., urban canyons or under tree cover). This improves geometric dilution of precision (GDOP), shortens time-to-first-fix, and delivers sub-5-meter CEP accuracy without external correction services.

Does the STA8088FGTR require external Flash memory to run GNSS firmware, and what is the role of the in-package SQI Flash?

No external Flash is required. The STA8088FGTR integrates 16 Mbit SQI Flash memory stacked within the same VFQFPN56 package. This Flash stores the complete GNSS firmware - including acquisition, tracking, navigation, and NMEA output modules - enabling autonomous operation from power-on. It eliminates PCB routing for external memory, reduces EMI susceptibility, and simplifies certification for safety-critical deployments.

How is the dual CAN interface implemented, and what level of CAN protocol compliance does it provide?

The STA8088FGTR integrates two independent CAN 2.0B controllers compliant with ISO 11898-1, supporting both standard (11-bit) and extended (29-bit) identifiers, bit rates up to 1 Mbps, and hardware message filtering. Each controller has dedicated TX/RX pins (CAN0TX/CAN0RX, CAN1TX/CAN1RX) and internal FIFOs - enabling direct connection to external CAN transceivers (e.g., TJA1042) without host CPU intervention for message scheduling or error recovery.

What power supply configurations are supported, and how does the embedded voltage regulator architecture affect system design?

The STA8088FGTR supports two power modes: regulated mode (using internal HPREG/LPREG/BKREG) and bypass mode. In regulated mode, VDD12_MVR (1.2 V) powers the core, while VDD18_MVR (1.8 V) supplies I/O and RF sections - requiring only bulk decoupling capacitors. In bypass mode, direct 1.2 V core supply disables regulators, reducing quiescent current by ~30%. I/O rings accept either 1.8 V or 3.3 V, enabling flexible interface voltage translation without level shifters.