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STM32MP257FAI3

STM32MP257FAI3

STMicroelectronics
ARM® Cortex®-A35, ARM® Cortex®-M0+, ARM® Cortex®-M33 Microprocessor IC STM32MP2 2, 1, 1 Core, 32-Bit 1.5GHz 436-TFBGA (18x18)
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Overview

The STM32MP257FAI3 is a high-performance industrial microprocessor featuring a dual-core Arm Cortex-A35 architecture running at 1.5GHz alongside integrated Cortex-M33 and Cortex-M0+ real-time coprocessors. This heterogeneous architecture allows for a full Linux OS implementation on the application cores while maintaining low-latency control and power management via the dedicated microcontroller cores. It includes a high-speed interface suite including USB 3.0, triple Gigabit Ethernet, and support for modern RAM standards like LPDDR4.

Why Choose This Part

The part offers a powerful migration path for embedded engineers needing Linux capability without sacrificing real-time deterministic control thanks to the triple-core heterogeneous setup. Support for LPDDR4 and DDR4 RAM ensures long-term availability and high memory bandwidth for data-intensive applications. Furthermore, the integrated USB 3.0 and triple Gigabit Ethernet controllers reduce the need for external bridge chips, lowering the overall BOM cost and PCB complexity.

Applications

Industrial Edge Gateways
Leveraging triple 10/100/1000Mbps Ethernet ports and USB 3.0 for high-bandwidth data aggregation and secure industrial cloud connectivity.
Human-Machine Interface (HMI)
Utilizing the dual 1.5GHz A35 cores to drive rich graphical user interfaces and touch displays in factory automation environments.
Smart Vision Systems
Applying high-speed processing and FPU capabilities for local image analysis and camera-based monitoring at the edge.
Secure IoT Infrastructure
Implementing Arm TrustZone, secure boot, and hardware cryptography to protect sensitive data in distributed infrastructure nodes.

Key Specifications

USB USB 2.0 (1), USB 3.0 (1), USB Type-C (1)
Speed 1.5GHz
Ethernet 10/100/1000Mbps (3)
Mounting Type Surface Mount
Voltage - I/O 1.8V, 3.3V
Core Processor ARM Cortex-A35, ARM Cortex-M0+, ARM Cortex-M33
Package / Case 436-TFBGA
RAM Controllers DDR3L, DDR4, LPDDR4
Security Features ARM TZ, Boot Security, TRNG
Additional Interfaces GPIO, DMA, CANbus, I2C, MMC/SD/SDIO, SPDIF, SPI, UART/USART
Graphics Acceleration Yes
Operating Temperature -40degC ~ 125degC (TJ)
Supplier Device Package 436-TFBGA (18x18)
Number of Cores/Bus Width 2, 1, 1 Core, 32-Bit
Display & Interface Controllers LCD, LVDS, MIPI-CSI2

Getting Started

Begin development with the STM32MP257F-EV1 evaluation board to validate hardware interfaces and peripheral performance. Software development is supported by the OpenSTLinux Distribution for the Cortex-A35 cores and the STM32CubeMP2 package for the Cortex-M33 and Cortex-M0+ real-time cores. Engineers should utilize the STM32CubeMX tool for initial pinout configuration and clock tree generation for the 436-TFBGA package.

Also Consider

STM32MP257F-EV1 Evaluation Board STMicroelectronics - The official hardware validation platform specifically designed for prototyping with this MPU series.