STM32MP251CAI3

Microprocessors Overview

The STM32MP251CAI3 is a microprocessor from the STM32MP2 series, manufactured by STMicroelectronics. It features an Arm Cortex-A35 core operating at 1.2 GHz and an Arm Cortex-M33 core operating at 400 MHz. The device includes an Arm Cortex-M0+ core for low-power management. It supports DDR3L, DDR4, and LPDDR4 memory controllers. The package is a 361-VFBGA (10x10 mm) with surface mount installation. Operating temperature ranges from -40°C to +125°C TJ. I/O voltages are 1.8V and 3.3V.

Microprocessors Feature Summary

• Heterogeneous processing architecture combining high-performance application cores with secure real-time control cores.
• Integrated hardware security features including TrustZone and Secure Boot capabilities.
• Support for multiple external memory types including DDR3L, DDR4, and LPDDR4.
• Embedded GPU and NPU accelerators for graphics and edge AI applications.

Microprocessors Applications

• Industrial automation and factory control systems
• Smart home appliances and central control units
• Edge computing devices requiring machine vision
• Secure IoT gateways and smart meters

Microprocessors Procurement Notes

Verify the specific suffix 'I3' against official STMicroelectronics documentation to confirm pinout, thermal characteristics, and commercial availability status. Ensure compatibility with required DRAM types and PMIC solutions before finalizing design-in. Check for any recent Product Change Notifications affecting packaging or material compliance.

Microprocessors Selection Notes

Select this component when a balance of moderate CPU performance and robust industrial security is required. The 1.2 GHz Cortex-A35 offers sufficient throughput for standard Linux-based applications while the M33 handles real-time tasks. Consider the VFBGA-361 package constraints and PCB layer requirements for signal integrity.

Microprocessors Part Context

This part belongs to the STM32MP25x product line within the broader STM32MP2 family. It is designed for industrial environments requiring chip robustness. The series provides extended connectivity options and supports mainline OpenSTLinux distributions. It serves as a second-generation MPU offering enhanced performance over previous STM32MPU generations.

Microprocessors Replacement Considerations

Check for STM32MP251CAL3 or STM32MP251DAL3 if different frequency grades or package variants are acceptable. Verify pin-to-pin compatibility with other STM32MP25x derivatives before substitution.

Microprocessors FAQ

What is the maximum operating frequency of the Cortex-A35 core in this specific model?

The Cortex-A35 core in the STM32MP251CAI3 operates at a maximum frequency of 1.2 GHz.

Does this microprocessor support DDR3L memory?

Yes, the STM32MP251CAI3 supports DDR3L, DDR4, and LPDDR4 external memory controllers.