STM32H523VEI7
Overview
STM32H523VEI7 is an STMicroelectronics STM32H5-series 32-bit microcontroller based on the Arm Cortex-M33 core. It is aimed at high-performance embedded control and connected products, with on-chip Flash and SRAM for application code, data buffering, and real-time firmware tasks. Engineers typically use parts like this when they need more compute headroom than a basic Cortex-M0/M3/M4 MCU provides, while still staying in a general-purpose microcontroller class.
Why Choose This Part
The STM32H523VEI7 gives you a modern Cortex-M33 core with enough Flash and RAM for substantial embedded firmware, making it a strong choice for feature-rich control designs. ST's STM32 ecosystem is broad, so you can usually move faster with established boards, middleware, and tool support. It is also a practical option when you want a high-performance MCU without stepping up to an application processor.
Applications
Getting Started
For development, engineers typically start with an STM32 Nucleo or Discovery board in the STM32H5 family if they want direct hardware match and easy debug access. STM32CubeIDE is the usual entry point, with STM32CubeMX for pin and clock setup, and ST-LINK support for programming and debugging. For production work, verify the exact package, pinout, and memory map against the datasheet and reference manual before locking in the PCB.
Dev Boards
Development boards and breakout modules featuring the STM32H523VEI7 or compatible chips — ready to use for prototyping.
STM32H523 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Connectivity | I/O Pins | Core Processor | Package | ADC/DAC | Flash | Stock |
|---|---|---|---|---|---|---|---|
| STM32H523VEI7 (this part) | — | — | — | — | — | — | 197 |
| STM32H523CCU6 | CANbus, FIFO, I2C,.. | 35 | ARM Cortex-M33F | UFQFN-48 | A/D 10x12b SAR; D/.. | 256KB | 565 |
| STM32H523CET6 | CANbus, FIFO, I2C,.. | 35 | ARM Cortex-M33 | LQFP-48 | A/D 10x12b SAR; D/.. | 512KB | 1,792 |
| STM32H523VET6 | CANbus, FIFO, I2C,.. | 80 | ARM Cortex-M33 | LQFP-100 | A/D 16x12b SAR; D/.. | 512KB | 1,445 |



