STA1085POA3

The STA1085POA3 is a dual-core ARM® Cortex®-R4 microprocessor IC optimized for embedded telematics and automotive applications. It combines a 600 MHz Cortex-R4 main processor with an ARM® Cortex®-M3 co-processor and a range of on-chip interfaces to address infotainment, telematics and embedded control tasks.

Designed for integration and reliability, the device provides multiple host and peripheral interfaces, SDRAM memory control and automotive-grade qualification to support robust system designs in demanding temperature environments.

Key Features

• Core & Processing Dual 32‑bit processing with an ARM® Cortex®-R4 main core running at 600 MHz and an ARM® Cortex®-M3 co-processor for offload and control tasks.
• Memory & Display Integrated SDRAM controller and LCD display interface controller to support system memory and user display requirements.
• Peripheral Interfaces Two USB 2.0 ports and CANbus provide high-speed host and in-vehicle connectivity options.
• System Reliability & Debug AEC‑Q100 qualification and JTAG support enable automotive-grade reliability and standard debug/programming access.
• Power & I/O 3.3 V I/O voltage for compatibility with common automotive and embedded signaling levels.
• Package & Mounting Supplied in a 361‑LFBGA (16×16) surface-mount package to suit compact board designs.
• Environmental Range & Compliance Operating temperature range from −40 °C to 85 °C and RoHS compliant for regulatory and environmental compatibility.
• Graphics No dedicated graphics acceleration—focus is on processor, co-processor and peripheral integration.

Typical Applications

• Telematics systems — Core processing and peripheral interfaces for vehicle telematics modules and data processing.
• Automotive infotainment — Integration of USB, LCD controller and SDRAM control for in-vehicle infotainment subsystems.
• In-vehicle connectivity and control — CANbus and multiple USB ports for communication and subsystem interfacing.
• Embedded control systems — Dual-core architecture for separating real-time control and management tasks in embedded applications.

Unique Advantages

• Dual-core architecture: Combines a 600 MHz ARM® Cortex®-R4 with an ARM® Cortex®-M3 co-processor to partition processing and control workloads.
• Automotive-grade qualification: AEC‑Q100 qualification and an operating range of −40 °C to 85 °C support automotive and harsh-environment deployments.
• Rich peripheral set: Built-in USB 2.0 (2 ports), CANbus and LCD controller reduce external component count and simplify system design.
• Standard debug access: JTAG support enables established debug and programming workflows during development and production.
• Compact package: 361‑LFBGA (16×16) surface-mount package facilitates dense PCB layouts and space-constrained designs.
• Regulatory readiness: RoHS compliance for environmental regulatory alignment in production.

Why Choose STA1085POA3?

The STA1085POA3 positions itself as a performance-oriented, automotive-qualified microprocessor for embedded telematics and infotainment designs. Its dual-core ARM architecture, combined with a comprehensive peripheral mix and SDRAM/display support, enables designers to consolidate functions while maintaining deterministic processing and control separation.

Manufactured by STMicroelectronics and delivered in a compact 361‑LFBGA package with established debug and interface support, the STA1085POA3 is suited to engineers building scalable, robust automotive and embedded systems that require defined operating ranges and industry-standard interfaces.

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