STMicroelectronics STM32H563IIK3Q

Overview

STM32H563IIK3Q from STMicroelectronics is a 32-bit Arm® Cortex®-M33 microcontroller with TrustZone® security, 250 MHz max clock, 2-Mbyte ECC flash, 640-Kbyte SRAM (including ECC-protected SRAM2/SRAM3), and integrated CORDIC/FMAC math accelerators. It targets secure industrial control, IoT edge nodes, and automotive body electronics requiring high-integrity firmware execution and real-time signal processing.

For engineers reviewing the STM32H563IIK3Q datasheet, STM32H563IIK3Q pinout, STM32H563IIK3Q application, or STM32H563IIK3Q equivalent, key selection criteria include TrustZone-enforced peripheral isolation, dual-bank read-while-write flash for OTA updates, 140 GPIOs with 5 V tolerance, dual DMA controllers, and hardware-accelerated cryptographic primitives (ECDSA, HASH, RNG).

Technical Context

The STM32H563IIK3Q implements Armv8-M mainline security with configurable SAU regions, enabling strict separation of secure/non-secure firmware execution. Its ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to sustain zero-wait-state operation from flash and external memories.

It integrates two independent GPDMA controllers supporting memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers with FIFO buffering. The dual 12-bit ADCs deliver up to 5 Msps sampling rate, while the CORDIC coprocessor accelerates trigonometric functions and FMAC handles FIR/IIR filtering in real time.

Key Specifications

Pinout & Package

STM32H563IIK3Q uses a UFBGA176+25 package (10 × 10 mm, 201-ball layout) with 140 general-purpose I/Os, most 5 V-tolerant, and dedicated supply pins for VDD, VSS, VCAP, VBAT, and analog domains. Ball pitch is 0.65 mm; top-side marking includes "H563IIK3Q" and date code.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-security, high-performance MCU applications.

Compared with STM32H563IIK3Q, the STM32H753IIK6 trades hardware security for higher clock speed and larger RAM, while the i.MX RT1176AVM8B offers dual-core flexibility at the cost of unified TrustZone enforcement across all peripherals.

Availability

STM32H563IIK3Q is available at Aetrix Electronics and suitable for industrial PLCs, secure IoT gateways, automotive body control modules, and medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32H563IIK3Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32H5 series is ST's flagship secure MCU line built on Arm Cortex-M33 with TrustZone, targeting applications demanding PSA Certified Level 2 compliance, functional safety readiness (IEC 61508), and hardware-rooted security for edge intelligence.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32H563IIK3Q operates at up to 250 MHz with an Arm Cortex-M33 core delivering 375 DMIPS (Dhrystone 2.1) and 1023 CoreMark®. This performance is sustained via the 8-Kbyte instruction cache and ART Accelerator, enabling zero-wait-state execution from embedded flash memory.

Does STM32H563IIK3Q support over-the-air (OTA) firmware updates without service interruption?

Yes. Its dual-bank flash architecture with read-while-write capability allows one bank to execute active firmware while the other is being reprogrammed. Combined with Secure Firmware Installation (SFI) and TrustZone-protected update handlers, it enables authenticated, atomic, and fail-safe OTA updates.

How does the TrustZone implementation differ from earlier STM32 families like the H7 series?

Unlike the H7 (which lacks TrustZone), the H563IIK3Q implements Armv8-M mainline TrustZone with eight configurable SAU regions, GTZC-controlled peripheral security attribution, and TrustZone-aware debug authentication. All major peripherals - including GPIO, ADC, timers, and communication interfaces - can be assigned secure/non-secure attributes at runtime.

What external memory interfaces are supported, and what is the maximum bandwidth achievable?

The device supports Flexible Memory Controller (FMC) for SRAM, PSRAM, SDRAM/LPSDR, FRAM, and NOR/NAND, plus Octo-SPI for serial PSRAM/NOR/flash. With Octo-SPI in octal DDR mode, peak bandwidth reaches 800 MB/s; FMC with SDRAM achieves up to 200 MB/s depending on configuration and clock tuning.