STM32MP231DAJ3

Microprocessors Overview

The STM32MP231DAJ3 is a microprocessor featuring a single Arm Cortex-A35 core operating at up to 1.5 GHz and an Arm Cortex-M33 core running at 400 MHz. It includes 32-Kbyte L1 instruction and data caches per A35 core, a 512-Kbyte unified L2 cache, and 776 Kbytes of internal SRAM. The device supports external DDR memory up to 4 Gbytes via a 16-bit interface compatible with DDR3L-2133, DDR4-2400, and LPDDR4-2400 standards. Connectivity options include one Gigabit Ethernet interface, USB 2.0 Host and Dual Role controllers, SDMMC interfaces, and multiple communication peripherals.

Microprocessors Feature Summary

• Dual-core architecture combining a high-performance Cortex-A35 application processor with a secure Cortex-M33 microcontroller for resource isolation.
• Integrated hardware security features including Arm TrustZone technology, active tamper detection, and cryptographic accelerators.
• Flexible external memory controller supporting various SDRAM types with low-power self-refresh capabilities.
• Comprehensive peripheral set including camera interfaces, display controllers, and multiple serial communication buses.

Microprocessors Applications

• Industrial automation and factory control systems
• Smart home hubs and IoT gateways
• Electric vehicle charging stations
• Smart metering devices

Microprocessors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and feature configuration. Ensure compatibility with required external memory components and power management ICs. Check for moisture sensitivity levels and recommended reflow profiles during assembly planning.

Microprocessors Selection Notes

Select this component when a single high-frequency application core is sufficient alongside a dedicated secure microcontroller domain. Consider the available GPIO count and peripheral inventory relative to system connectivity requirements. Evaluate the supported external memory densities and speeds to meet bandwidth and storage needs.

Microprocessors Part Context

This part belongs to the STM32MP23x product line within the broader STM32MP2 series. It represents a cost-optimized derivative of the higher-end STM32MP25x portfolio, maintaining pin-to-pin compatibility with other variants in the family while offering essential MPU performance.

Microprocessors Replacement Considerations

Compatible substitutes within the same family include STM32MP233DAJ3 and STM32MP235DAJ3. These alternatives offer increased core counts or additional peripherals such as dual Ethernet ports and AI accelerators. Verify pinout and software compatibility before substitution.