STM32H503CBU6

Microcontrollers Overview

The STM32H503CBU6 is a high-performance microcontroller from the STM32H5 series, based on the Arm Cortex-M33 core with FPU. It operates at up to 250 MHz and includes 128 Kbytes of flash memory with ECC and two banks of read-while-write capability. The device features 32 Kbytes of SRAM with ECC and 2 Kbytes of backup SRAM. It supports a supply voltage range of 1.71 V to 3.6 V and operates within a temperature range of -40 °C to +85 °C.

Microcontrollers Feature Summary

• Arm Cortex-M33 CPU with TrustZone, FPU, MPU, and ART Accelerator for zero-wait-state execution
• Integrated security features including HASH (SHA-1, SHA-2), HMAC, True Random Number Generator, and active tamper detection
• Comprehensive analog peripherals including a 12-bit ADC, dual-channel DAC, operational amplifier, comparator, and digital temperature sensor
• Multiple communication interfaces such as I2C, I3C, SPI/I2S, USART/LPUART, FDCAN, and USB full-speed

Microcontrollers Applications

• Secure IoT gateways and edge computing nodes
• Industrial control systems requiring hardware security
• Smart home appliances with low-power requirements
• Medical devices needing reliable data processing and safety features

Microcontrollers Procurement Notes

Verify the specific package type UFQFPN-48 and ensure compatibility with your PCB footprint. Confirm that the operating temperature range meets your environmental requirements. Check for any recent product change notifications or obsolescence notices from STMicroelectronics before finalizing procurement plans.

Microcontrollers Selection Notes

Choose this MCU if you require a balance of high performance and robust security features in a compact package. Consider the available GPIO count and peripheral set against your application needs. Evaluate power consumption characteristics across different modes to ensure it fits your energy budget.

Microcontrollers Part Context

This component belongs to the STM32H5 series, designed for applications demanding both high performance and advanced security. It builds upon previous generations by integrating TrustZone technology and enhanced cryptographic accelerators, making it suitable for modern connected devices.

Microcontrollers Replacement Considerations

Direct replacements include other variants within the STM32H503xx family, such as STM32H503KBU6 or STM32H503CBT6, depending on package preference. Ensure pinout compatibility and verify that memory sizes meet your software requirements when selecting an alternative.

Microcontrollers FAQ

Does the STM32H503CBU6 support TrustZone?

Yes, the Arm Cortex-M33 core in this device implements TrustZone technology to enhance application security.

What is the maximum operating frequency of the STM32H503CBU6?

The device can operate at a frequency of up to 250 MHz.