STM32MP231AAL3

Microprocessors Overview

The STM32MP231AAL3 is a microprocessor featuring a single-core Arm Cortex-A35 operating up to 1.2 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. It lacks the GPU, NPU, video decoder, dual Ethernet, and DSI/LVDS display interfaces found in higher-tier variants.

Microprocessors Feature Summary

• Dual-core heterogeneous architecture with high-performance Cortex-A35 application processor and secure real-time Cortex-M33 microcontroller
• Integrated hardware security features including Arm TrustZone, resource isolation framework, and tamper detection capabilities
• Comprehensive peripheral set supporting industrial communication protocols and multimedia connectivity
• Flexible memory controller supporting various external SDRAM types for scalable system design

Microprocessors Applications

• Industrial automation controllers and gateways
• Smart home hubs and white goods control units
• Medical monitoring devices requiring secure data processing
• Consumer electronics with basic graphical user interfaces

Microprocessors Procurement Notes

Verify package availability as the AL suffix denotes VFBGA361 packaging. Confirm specific revision status against the latest datasheet DS14635. Ensure power supply designs accommodate the multiple voltage domains specified. Check for any product change notifications affecting pinout or electrical characteristics prior to finalizing procurement orders.

Microprocessors Selection Notes

Select this model when a single Cortex-A35 core suffices for the application workload. Choose over STM32MP233x variants if GPU, NPU, and dual Ethernet are unnecessary to reduce cost. Ensure the VFBGA361 package fits the PCB layout constraints. Verify that the absence of dedicated video decoding hardware meets the multimedia requirements.

Microprocessors Part Context

This component belongs to the STM32MP23xA/D series within the STM32MP2 family. It shares the same core architecture and peripheral base as other members but differs in specific feature inclusion like GPU/NPU and connectivity options. The series targets cost-optimized edge solutions with extended temperature ranges.

Microprocessors Replacement Considerations

STM32MP231DAL3 (TFBGA361 package)

Microprocessors FAQ

Does the STM32MP231AAL3 include a GPU or NPU?

No, the STM32MP231x variant does not include the optional VeriSilicon GPU or NPU found in STM32MP233x and STM32MP235x devices.

What is the maximum frequency for the Cortex-A35 core?

The Cortex-A35 core operates at frequencies up to 1.2 GHz for the 'A' grade devices.

How many Gigabit Ethernet interfaces are available?

The STM32MP231x devices provide one Gigabit Ethernet interface with TSN support.