STA2051TR

Overview

The STA2051TR is a 32-bit single-chip baseband controller for GPS and telematic applications, manufactured by STMicroelectronics. It features an ARM7TDMI RISC CPU operating up to 66 MHz with 256 KB Flash (100K cycles) and 64 KB RAM. The device integrates a 12-channel GPS correlation DSP supporting RTCA-SC159/WAAS/EGNOS without requiring a TCXO. Key peripherals include four UARTs, two SPIs, two I2Cs, one CAN V2.0B module, and a 12-bit ADC. It operates on a 2.7V–3.6V I/O supply and 1.8V core supply within a -40°C to 85°C range, packaged in a 64-pin TQFP.

Feature Summary

• ARM7TDMI 16/32-bit RISC CPU with 66 MHz max clock frequency
• Integrated 12-channel GPS correlation DSP with <30m standalone accuracy
• Complete embedded memory: 256 KB Flash + 64 KB RAM
• Extensive connectivity: CAN V2.0B, USB 1.1 (TQFP144 only), HDLC, 4 UARTs, 2 SPIs, 2 I2Cs

Applications

• Automotive telematics systems
• GPS navigation devices
• Baseband controllers for location tracking

Procurement Notes

Verify the ordering code matches the required package and packing method. The 'TR' suffix indicates Tape and Reel packaging for the TQFP64 variant. Confirm that the specific revision level meets project requirements, as ST reserves the right to modify documents and products without notice. Ensure compliance with automotive grade restrictions if used in safety-critical environments.

Selection Notes

Select the STA2051TR when a dedicated GPS baseband solution with integrated DSP is required. Note that the USB interface is exclusive to the TQFP144 package; the TQFP64 version lacks this peripheral. Verify power supply constraints, as the core requires 1.8V while I/Os support 2.7V–3.6V. Consider the 64-pin limitation on multiplexed I/Os compared to the 144-pin option if more external interfaces are needed.

Part Context

The STA2051 belongs to the VESPUCCI family of microcontrollers designed specifically for GPS and telematic applications. It utilizes CMOS M8T (0.18 µm) technology to balance performance and power efficiency. The device is suitable for automotive applications but may require user risk assessment if not explicitly graded as Automotive Grade.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.