STMicroelectronics STM32H750IBK6

Overview

STM32H750IBK6 from STMicroelectronics is a 32-bit Arm® Cortex®-M7 microcontroller operating at up to 480 MHz, featuring 128 Kbytes of flash, 1 Mbyte of RAM (including 192 Kbytes TCM), and integrated cryptographic acceleration (AES-128/192/256, HASH, RNG). It supports dual-domain power management, FDCAN with CAN FD, USB OTG HS/FS, and LCD-TFT controller - deployed in industrial HMIs, motor control gateways, and secure edge nodes.

For engineers reviewing the STM32H750IBK6 datasheet, STM32H750IBK6 pinout, STM32H750IBK6 application, or STM32H750IBK6 equivalent, key selection criteria include TCM RAM allocation for real-time firmware, dual PLL fractional clocking for synchronized analog/digital timing, FDCAN FD bandwidth for automotive diagnostics, and hardware JPEG codec for embedded vision preprocessing.

Technical Context

The STM32H750IBK6 implements a split-power-domain architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across high-performance, peripheral, and system-control domains. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, supporting concurrent high-bandwidth data flows between CPU, MDMA, and peripherals.

It integrates three PLLs - one system PLL with fractional-N synthesis for precise 480 MHz core clock generation, plus two kernel PLLs dedicated to peripheral clocks (e.g., USB, Ethernet, ADC) - ensuring jitter-free synchronization across mixed-signal subsystems without external clock trees.

Key Specifications

Pinout & Package

STM32H750IBK6 uses the UFBGA176+25 (10 × 10 mm, 0.8 mm pitch) package with 176 signal balls plus 25 dedicated VSS/VDDIO/VDDA balls. The package supports 168 GPIOs with interrupt capability, multiple alternate functions per pin, and configurable drive strength.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, the STM32H750IBK6 trades flash capacity for certified crypto acceleration and lower standby power; versus NXP RT1176DVGL6A, it offers integrated display and vision acceleration at the cost of dual-core redundancy - making it optimal for cost-sensitive, graphics-enabled edge nodes.

Availability

STM32H750IBK6 is available at Aetrix Electronics and suitable for industrial HMIs, automotive diagnostic gateways, and secure edge nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32H750IBK6 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, specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time performance, security, and rich peripheral integration - designed specifically for next-generation industrial automation, automotive gateways, and AI-edge inference endpoints.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32H750IBK6 achieves 480 MHz via its main PLL configured in fractional-N mode, using an external 8 MHz crystal and internal dividers. This requires proper PCB layout for the VCAP decoupling network and strict adherence to the 1.2 V core supply tolerance (±3%). The FPU and caches remain fully functional at this frequency, delivering 1027 DMIPS.

Does STM32H750IBK6 support external SDRAM, and what interface is used?

Yes, it supports external SDRAM through the Flexible Memory Controller (FMC) with 16-bit data bus and row/column addressing. The FMC supports LPDDR2/DDR2/SDRAM up to 133 MHz in synchronous mode. Pin assignment requires careful signal integrity design - especially for CLK, CKE, and DQM lines - and initialization must follow ST's AN5213 sequence.

How does the dual-domain power architecture improve system-level energy efficiency?

The D1/D2/D3 domain separation allows independent clock gating and voltage scaling: D1 (core) can run at full 1.2 V while D2 (peripherals) operates at 1.0 V and D3 (reset/control) remains active at 0.9 V. This enables selective wake-up - e.g., USB interrupt wakes only D2 - reducing active current by up to 40% versus single-domain MCUs in partial operation.

Can the hardware JPEG codec process images from the DCMI interface in real time?

Yes, the DCMI interface (up to 80 MHz pixel clock) feeds raw Bayer or YUV data directly to the JPEG codec engine, which encodes 640×480 frames at ~30 fps with CPU load under 5%. Frame buffering uses DTCM RAM to avoid cache coherency stalls, and DMA chaining enables continuous capture-to-compress pipelines without CPU intervention.