STMicroelectronics STA8089GTR

Overview

STA8089GTR from STMicroelectronics is a single-die, standalone GNSS receiver IC supporting GPS, Galileo, GLONASS, BeiDou, and QZSS with 48 tracking + 2 fast-acquisition channels, -162 dBm indoor tracking sensitivity, and ARM946 MCU running up to 196 MHz - deployed in automotive telematics and precision navigation systems requiring multi-constellation robustness in urban canyons.

For engineers reviewing the STA8089GTR datasheet, STA8089GTR pinout, STA8089GTR application, or STA8089GTR equivalent, key selection criteria include RF front-end integration (LNA + VGA), dual CAN interface support (STA8089GB/D variants), SQI Flash interface compatibility, USB 2.0 full-speed PHY integration, and 1.8 V / 3.3 V I/O voltage flexibility across two independent I/O rings.

Technical Context

The STA8089GTR integrates a G3BB+ baseband processor capable of simultaneous acquisition and tracking of GPS/Galileo (4.092 MHz IF) and GLONASS/BeiDou (8.57 MHz / 10.23 MHz IF), with programmable channel allocation and sign-magnitude 3-bit ADC digitization of IF signals. Its RF front-end includes on-die LNA, VGA, and synthesizer supporting 10–52 MHz reference clocks.

The embedded ARM946E-S core operates at up to 196 MHz with 256 KB configurable TCM SRAM (ITCM + DTCM), real-time clock (RTC), dual UARTs, I²C master/slave, two 10-bit ADC inputs, and dedicated backup domain powered by VINB (1.6–4.3 V) - enabling always-on positioning with low-power standby via STDBYn/STDBY_OUT control.

Key Specifications

Pinout & Package

STA8089GTR is housed in a VFQFPN56 package (7 × 7 × 1.0 mm, 0.4 mm pitch) with exposed thermal pad (EP) for enhanced thermal dissipation in automotive and industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UBX-M8030 and WGR7640, STA8089GTR uniquely balances standalone GNSS performance, embedded processing capability, and automotive-grade interfaces - making it optimal for cost-sensitive, CAN-enabled telematics designs where external host MCU resources are constrained.

Availability

STA8089GTR is available at Aetrix Electronics and suitable for automotive telematics, fleet management trackers, and smart city navigation devices requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-aligned qualification evidence.

Supply support for STA8089GTR 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, analog ICs, MEMS, and automotive-grade silicon - with over 40 years of GNSS IP development.

STA8089GTR belongs to the Teseo III family, designed specifically for high-accuracy, multi-constellation positioning in automotive, industrial, and safety-critical navigation systems - emphasizing RF integration, low-power operation, and firmware extensibility.

FAQ

What GNSS constellations does STA8089GTR support natively?

STA8089GTR natively supports GPS, Galileo, GLONASS, BeiDou, and QZSS in a single chip without external configuration. It uses the G3BB+ baseband processor to acquire and track all five systems concurrently, with programmable channel allocation between Galileo/GPS and GLONASS/BeiDou pairs - enabling optimal satellite geometry selection in real time.

Does STA8089GTR include an integrated USB physical layer?

Yes, STA8089GTR integrates a full-speed USB 2.0 PHY compliant with USB specification 2.0, supporting 12 Mbps data transfer. This eliminates the need for an external USB transceiver and allows direct connection to host controllers via USB_DP and USB_DM pins - verified in DS12183 Rev 2 Section 2.6 and Table 5.

Can STA8089GTR operate with only a 1.2 V supply?

Yes - STA8089GTR supports direct 1.2 V core supply (VDDD) bypassing internal LDOs, which enter power-down mode. However, main I/O rings (VDDIO_R1/R2) still require 1.8 V or 3.3 V, and RF supplies (VCC_RF/VCC_PLL) must be provided externally at 1.2 V ±10%. This mode is documented in Section 1 Overview and Table 12 of DS12183 Rev 2.

Is the STA8089GTR pin-compatible with other Teseo III devices?

Yes - STA8089GTR is pin-to-pin compatible with STA8088G, sharing identical VFQFPN56 footprint and power/signal pin mapping. This allows drop-in replacement in existing designs while upgrading to enhanced multi-constellation support and improved sensitivity - explicitly stated in the "Features" section of DS12183 Rev 2.