STA1085POA3

Microprocessors Overview

The STA1085POA3 is an Accordo2 dual-core microprocessor designed for automotive car radio applications. It integrates an ARM Cortex-R4 processor running up to 600 MHz and an ARM Cortex-M3 controller for real-time vehicle interface processing. The device includes a digital sound processing subsystem with 450 MIPS, six stereo audio DACs, and sample rate converters. Memory consists of 1.25 MB embedded SRAM, L1 cache, and controllers for SDRAM, NOR, and NAND flash. It supports AEC-Q100 qualification and offers interfaces including UART, I2S, I2C, USB, and MMC.

Microprocessors Feature Summary

• Dual-core architecture combining high-performance Cortex-R4 processing with dedicated Cortex-M3 vehicle interface control
• Integrated digital audio subsystem featuring DSP capabilities, hardware sample rate conversion, and multiple audio ADCs/DACs
• Comprehensive peripheral set supporting standard automotive connectivity protocols and flexible memory configurations

Microprocessors Applications

• Automotive car radio systems
• Digital sound processing implementations
• Vehicle interface processing units

Microprocessors Procurement Notes

Verify the specific suffix POA3 against official STMicroelectronics documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with required operating conditions and software packages before procurement. Cross-reference part numbers with current availability lists as automotive components may have specific lifecycle statuses.

Microprocessors Selection Notes

Select this component for applications requiring integrated audio processing and vehicle communication within a single chip. The dual-core design separates real-time vehicle tasks from complex audio decoding. Consider the available memory size and interface options when designing the system architecture. Verify that the software support package meets the target operating system requirements.

Microprocessors Part Context

The STA1085 belongs to the Accordo2 family of microprocessors developed by STMicroelectronics. This series targets cost-effective solutions for modern automotive infotainment systems. The family emphasizes integration of audio, processing, and connectivity functions to reduce system complexity and bill of materials.

Microprocessors Replacement Considerations

Check for pin-to-pin compatible alternatives within the Accordo2 family or newer generations. Verify functional equivalence regarding core speeds, memory capacity, and peripheral sets. Confirm that any substitute maintains AEC-Q100 automotive qualification and software compatibility.