STMicroelectronics STM32F745ZET6

Overview

STM32F745ZET6 from STMicroelectronics is a high-performance ARM Cortex-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz. It integrates 512 KB flash, 320 KB SRAM (including 64 KB data TCM and 16 KB instruction TCM), dual USB OTG (FS/HS), 10/100 Ethernet MAC, LCD-TFT controller up to XGA, and triple 12-bit ADCs (2.4 MSPS). It targets real-time industrial HMI, motor control gateways, and embedded vision systems requiring deterministic processing and rich peripheral integration.

For engineers reviewing the STM32F745ZET6 datasheet, STM32F745ZET6 pinout, STM32F745ZET6 application, or STM32F745ZET6 equivalent, key selection criteria include TCM RAM allocation for real-time tasks, dual USB OTG PHY support, IEEE 1588v2 Ethernet timing, Chrom-ART Accelerator™ for GUI rendering, and 168 I/Os with 5 V tolerance-critical for mixed-voltage industrial interfaces.

Technical Context

The STM32F745ZET6 implements an Arm Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data L1 caches, enabling zero-wait-state execution from flash or external memory. Its AXI-AHB bus matrix supports concurrent high-bandwidth access across CPU, DMA2D, Ethernet, and FMC peripherals.

It features dual-mode Quad-SPI, parallel DCMI (54 MB/s), and two SAIs with audio PLL support-enabling simultaneous camera capture, audio playback, and TFT display output without CPU intervention. The flexible memory controller supports SDRAM, NOR, NAND, and PSRAM, while the LCD-TFT controller includes dedicated DMA2D for hardware-accelerated 2D graphics composition.

Key Specifications

Pinout & Package

LQFP144 (20 × 20 mm, 0.5 mm pitch) package with exposed thermal pad. Pin count: 144 leads; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F745ZET6, STM32F746ZGT6 offers greater flash headroom for complex firmware stacks, while STM32H743ZIT6 delivers higher compute throughput and hardware security-making the F745 optimal for cost-sensitive, real-time HMI and vision edge nodes where 512 KB flash and single-core determinism suffice.

Availability

STM32F745ZET6 is available at Aetrix Electronics and suitable for industrial HMI, motor control gateways, embedded vision terminals, and secure IoT gateways requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F745ZET6 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, sensors, and automotive ICs.

The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and graphical user interfaces-designed specifically for industrial automation, medical devices, and smart appliances where Cortex-M7 efficiency and peripheral integration reduce system complexity.

FAQ

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

The STM32F745ZET6 achieves 216 MHz via its Arm Cortex-M7 core with ART Accelerator™ and 4 KB L1 instruction/data caches. This configuration enables zero-wait-state execution from internal flash or external memories. The clock tree supports multiple PLL sources-including HSE (4–26 MHz), HSI (16 MHz), and PLLSAI-for flexible system timing design.

Does the part support external SDRAM, and what interface is used?

Yes, the STM32F745ZET6 supports external SDRAM through its Flexible Memory Controller (FMC) with 16-bit or 32-bit data bus capability. It implements standard SDRAM command protocols (activate, precharge, refresh) and supports up to 256 MB address space. The FMC also handles NOR, NAND, and PSRAM, enabling scalable memory architecture without external logic.

How many USB interfaces does it have, and what are their capabilities?

The STM32F745ZET6 integrates two independent USB controllers: one full-speed (FS) OTG with on-chip PHY, and one high-speed (HS) OTG with dedicated DMA and ULPI interface. The FS controller supports device/host/OTG roles without external components; the HS controller requires an external PHY but enables 480 Mbps data transfer for high-bandwidth applications like firmware updates or streaming.

What LCD interface options are supported, and what resolutions are achievable?

The STM32F745ZET6 features an integrated LCD-TFT controller supporting parallel 8080/6800 modes and RGB interface up to XGA (1024×768) resolution. With Chrom-ART Accelerator™ (DMA2D), it performs hardware-accelerated 2D graphics operations including alpha blending and image rotation. The controller supports up to 24-bit color depth and includes programmable timing generators for custom panel timing requirements.