STM32H523 in STM32 Family
The STM32H523 sub-family by STMicroelectronics belongs to the high-performance STM32H5 series, featuring the Arm Cortex-M33 core with TrustZone technology. Operating at speeds up to 250 MHz, these microcontrollers provide a balanced performance-to-power ratio for demanding embedded applications. They are designed for developers needing integrated security features, advanced digital peripherals, and a streamlined memory footprint compared to the flagship H7 series, making them ideal for cost-sensitive yet powerful industrial and consumer designs.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Connectivity | I/O Pins | Core Processor | Package | ADC/DAC | Flash | Stock |
|---|---|---|---|---|---|---|---|
| STM32H523CCU6 (STMicroelectronics) | CANbus, FIFO, I2C,.. | 35 | ARM Cortex-M33F | UFQFN-48 | A/D 10x12b SAR; D/.. | 256KB | 565 |
| STM32H523CET6 (STMicroelectronics) | CANbus, FIFO, I2C,.. | 35 | ARM Cortex-M33 | LQFP-48 | A/D 10x12b SAR; D/.. | 512KB | 1,792 |
| STM32H523VET6 (STMicroelectronics) | CANbus, FIFO, I2C,.. | 80 | ARM Cortex-M33 | LQFP-100 | A/D 16x12b SAR; D/.. | 512KB | 1,445 |
Variants within the STM32H523 family are distinguished primarily by Flash memory capacity, ranging from 256KB to 512KB, and package pin counts. Package options include 48-pin UFQFPN and LQFP, as well as 100-pin LQFP versions, which offer additional GPIOs and peripheral multiplexing flexibility. Some variants, like the VEI7, are rated for extended temperature ranges, ensuring reliable operation in harsher industrial environments compared to standard commercial grade parts.
