STMicroelectronics STM32F765IIK6

Overview

STM32F765IIK6 from STMicroelectronics is an Arm® Cortex®-M7 32-bit microcontroller with integrated FPU, delivering 462 DMIPS at 216 MHz, 2 MB flash (dual-bank), 512 KB SRAM (including 128 KB data TCM + 16 KB instruction TCM), and hardware JPEG codec. It integrates LCD-TFT controller (XGA), MIPI DSI host (720p), USB OTG HS/FS, Ethernet MAC, and three CAN 2.0B interfaces - deployed in industrial HMI, medical imaging front-ends, and networked edge gateways.

For engineers reviewing the STM32F765IIK6 datasheet, STM32F765IIK6 pinout, STM32F765IIK6 application, or STM32F765IIK6 equivalent, key selection criteria include dual-bank flash read-while-write capability, 128 KB data TCM RAM for deterministic real-time processing, MIPI DSI host timing compliance, Ethernet IEEE 1588v2 hardware support, and 166 5 V-tolerant I/Os for mixed-voltage system interfacing.

Technical Context

The STM32F765IIK6 implements a tightly coupled memory architecture with separate 16 KB I/D L1 caches and ART Accelerator, enabling zero-wait-state execution from flash at 216 MHz. Its AXI-AHB bus matrix supports concurrent high-bandwidth access to flash, SRAM, FMC, and peripherals including dual-mode Quad-SPI and Chrom-ART DMA2D accelerator.

It features three independent CAN 2.0B controllers, a 10/100 Ethernet MAC with dedicated DMA and IEEE 1588v2 timestamping, and dual USB OTG controllers (one FS-only with on-chip PHY, one HS/FS with ULPI interface). The DSI host controller complies with MIPI D-PHY v1.2 and supports LP/HS mode switching for low-power display operation.

Key Specifications

Pinout & Package

STM32F765IIK6 is housed in a 176-ball UFBGA package (10 × 10 mm, 0.8 mm pitch), optimized for compact industrial and medical PCB layouts with thermal efficiency and high I/O count. Pin definitions follow ST's standardized alternate function mapping across the F765/F767 series, validated per DS11532 Rev 9 Section 4 and Table 11.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F765IIK6, STM32F767ZIT6 trades DSI and I/O count for package simplicity and broader distributor stock, while STM32H743VIT6 delivers higher clock speed and memory bandwidth at the cost of display integration and pin compatibility - making the IIK6 optimal for space-constrained, display-integrated industrial gateways.

Availability

STM32F765IIK6 is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging gateways, smart energy concentrators, and automotive diagnostic tools requiring stable component supply across multi-year production cycles.

Supply support for STM32F765IIK6 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and advanced graphics - specifically engineered for industrial automation, medical devices, and IoT edge gateways where deterministic latency and peripheral integration are critical.

FAQ

What is the maximum operating frequency and associated power supply requirement for STM32F765IIK6?

The STM32F765IIK6 operates at up to 216 MHz with a core supply (VDD) of 1.7–3.6 V. At maximum frequency, it requires stable 1.2 V core voltage maintained via internal regulator with 2.2 µF VCAP1/VCAP2 decoupling capacitors. Full-speed operation is only guaranteed within the specified temperature range (–40°C to +105°C) and with proper PCB layout for power integrity.

Does STM32F765IIK6 support hardware encryption or secure boot features?

The STM32F765IIK6 does not integrate hardware cryptographic accelerators (AES, PKA, HASH) or secure boot ROM. It relies on software-based security libraries and external secure elements. However, it supports tamper detection via dedicated pins and provides 96-bit unique ID for device authentication - suitable for applications where security is implemented at the system level rather than silicon root-of-trust.

Can STM32F765IIK6 boot directly from external Quad-SPI flash memory?

Yes - the STM32F765IIK6 supports memory-mapped execution from Quad-SPI flash via its dual-mode QUADSPI interface. Boot mode selection is configured using BOOT0/BOOT1 pins, and the internal bootloader initializes the interface to fetch vector table and execute code directly from external memory without copying to internal RAM.

What is the role of the Chrom-ART Accelerator (DMA2D) in STM32F765IIK6-based display systems?

The Chrom-ART Accelerator (DMA2D) performs hardware-accelerated 2D graphics operations including memory-to-memory copy, pixel format conversion (RGB565 ↔ ARGB8888), and alpha-blending of up to four layers. In display systems, it reduces CPU load by offloading GUI rendering tasks - enabling smooth animation at 60 FPS on XGA resolution without impacting real-time control thread scheduling.