STA1085ELA3
| Part Description |
ARM® Cortex®-R4 Microprocessor IC - 2 Core, 32-Bit 450MHz 361-LFBGA (16x16) |
|---|---|
| Quantity | 933 Available (as of October 8, 2026) |
| Product Category | Microprocessors |
|---|---|
| Part Series | STA1085 (Telematics) |
| Manufacturer | STMicroelectronics |
| Manufacturing Status | Active |
| Manufacturer Standard Lead Time | 30 Weeks |
| Datasheet |
Specifications & Environmental
| Co-Processors/DSP | ARM® Cortex®-M3 | Core Processor | ARM® Cortex®-R4 | Device Package | 361-LFBGA (16x16) | ||
|---|---|---|---|---|---|---|---|
| Display & Interface Controllers | LCD | ECCN | N/A | Grade | Automotive | ||
| Graphics Acceleration | No | HTS Code | N/A | Moisture Sensitivity Level | N/A | ||
| Mounting Method | Surface Mount | Mounting Type | Surface Mount | Number of Cores/Bus Width | 2 Core, 32-Bit | ||
| Operating Temperature | -40°C ~ 85°C (TA) | Package / Case | 361-LFBGA | RAM Controllers | SDRAM | ||
| REACH Compliance | REACH Unaffected | RoHS Compliance | ROHS3 Compliant | Security Features | Boot Security, Secure JTAG | ||
| Speed | 450MHz | Supplier Device Package | 361-LFBGA (16×16) | USB | USB 2.0 (2) | ||
| Voltage – I/O | 3.3V |
Overview of STA1085ELA3 – ARM Cortex-R4 MPU, 450 MHz, 361-LFBGA
The STA1085ELA3 is a dual-core ARM® Cortex®-R4 microprocessor IC operating at 450 MHz, designed for embedded telematics applications. It integrates a companion ARM® Cortex®-M3 co-processor and a set of peripheral controllers to support high-performance connectivity and system control.
Targeted at automotive and telematics designs, the device combines performance, integration, and AEC-Q100 qualification to meet demanding temperature and reliability requirements in embedded environments.
Key Features
- Core & Architecture Dual ARM® Cortex®-R4 cores, 32-bit, running at 450 MHz, paired with an ARM® Cortex®-M3 co-processor for offloaded control tasks and real-time processing.
- Memory & Controllers Integrated SDRAM controller to interface with external memory for system and application code storage.
- Display Interface LCD controller support for driving vehicle or device displays.
- Connectivity Two USB 2.0 ports and CANbus interface provide high-speed peripheral connectivity and vehicle network integration.
- Security Boot security and Secure JTAG features to protect system boot and debugging access.
- Power & I/O 3.3 V I/O voltage compatibility suitable for common embedded peripheral domains.
- Package & Mounting 361-LFBGA (16×16) package in a surface-mount form factor for compact board integration.
- Qualification & Temperature Automotive-grade with AEC-Q100 qualification and an operating temperature range of −40 °C to 85 °C.
- Environmental Compliance RoHS compliant for adherence to environmental standards.
Typical Applications
- Telematics Control Units Dual-core processing and CANbus connectivity enable vehicle telematics functions and communication with vehicle networks.
- Automotive Embedded Systems AEC-Q100 qualification and −40 °C to 85 °C operating range make the device suitable for automotive-grade embedded controllers.
- Infotainment and Display Control Integrated LCD controller and USB 2.0 ports support display interfaces and media connectivity in in-vehicle systems.
Unique Advantages
- Dual-Core Performance: Two ARM® Cortex®-R4 cores at 450 MHz provide headroom for compute-intensive telematics and control tasks.
- Dedicated Co-Processor: ARM® Cortex®-M3 co-processor enables separation of real-time control from main application processing.
- Automotive Qualification: AEC-Q100 qualification and automotive grade designation support reliability requirements for vehicle applications.
- Integrated Connectivity: Built-in USB 2.0 (2 ports) and CANbus reduce external component count for connectivity and networking.
- Security Features: Boot security and Secure JTAG help protect system integrity and debugging access during development and deployment.
- Compact Packaging: 361-LFBGA (16×16) surface-mount package enables high-density board designs in space-constrained applications.
Why Choose STA1085ELA3?
STA1085ELA3 offers a balanced combination of processing power, connectivity, and automotive-grade qualification tailored for telematics and embedded automotive designs. Its dual ARM® Cortex®-R4 cores, companion Cortex®-M3 co-processor, and integrated peripheral set deliver a compact, integrated solution for systems requiring real-time performance and reliable operation.
With 3.3 V I/O compatibility, SDRAM controller support, security capabilities, and RoHS compliance, the STA1085ELA3 is suited to designs that demand long-term reliability across a wide operating temperature range while minimizing external component count.
Request a quote or submit a purchase inquiry today to evaluate the STA1085ELA3 for your telematics or automotive embedded application.

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