STMicroelectronics STM32F745IET7

Overview

STM32F745IET7 from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max clock, 1 MB Flash, 320+16+4 KB RAM, USB OTG HS/FS, 10/100 Ethernet MAC, LCD-TFT controller, and dual CAN 2.0B interfaces - deployed in industrial HMI, medical imaging front-ends, and real-time motor control systems.

For engineers reviewing the STM32F745IET7 datasheet, STM32F745IET7 pinout, STM32F745IET7 application, or STM32F745IET7 equivalent, key selection criteria include TCM RAM allocation for deterministic code execution, dual-mode Quad-SPI for secure firmware updates, Chrom-ART Accelerator™ for GUI rendering offload, IEEE 1588v2 support for time-sensitive networking, and VBAT-backed RTC with subsecond accuracy.

Technical Context

The STM32F745IET7 implements an Arm Cortex-M7 core with adaptive real-time accelerator (ART Accelerator™), 4 KB instruction and 4 KB data L1 caches, and MPU - enabling zero-wait-state execution from flash and external memories. It integrates dual USB OTG controllers (one FS-only with on-chip PHY, one HS/FS with ULPI and dedicated DMA) and a 10/100 Ethernet MAC with hardware IEEE 1588v2 timestamping.

Its memory subsystem includes 320 KB SRAM (64 KB data TCM + 16 KB instruction TCM + 4 KB backup), flexible external memory controller supporting SDRAM/NOR/NAND, and dual-mode Quad-SPI with execute-in-place capability. The peripheral set features three 12-bit ADCs (7.2 MSPS triple interleaved), two 12-bit DACs, 18 timers (including low-power 16-bit timer active in Stop mode), and dual CAN 2.0B controllers.

Key Specifications

Pinout & Package

STM32F745IET7 is housed in a TFBGA100 package (8 × 8 mm, 0.8 mm ball pitch), optimized for space-constrained industrial and medical PCB layouts. Its 100-ball layout supports full peripheral routing including dual CAN, Ethernet MII/RMII, LCD parallel interface (8080/6800), DCMI camera input, and dual USB PHY interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F745IET7, STM32F767IIT6 trades LCD-TFT capability for cryptographic acceleration and doubled memory, while STM32H743VIT6 delivers nearly 2.2× CPU performance and dual-core flexibility at the expense of DCMI and higher thermal design power - making the F745 optimal for display-centric real-time systems with balanced cost/performance.

Availability

STM32F745IET7 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, programmable logic controllers, and time-sensitive networking gateways requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F745IET7 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 ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32F7 series targets high-end real-time embedded applications demanding both computational throughput and rich peripheral integration - specifically engineered for deterministic GUI rendering, multi-protocol connectivity, and precision control in resource-constrained environments.

FAQ

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

The STM32F745IET7 achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with ART Accelerator™ and dual 4 KB L1 caches. This configuration enables zero-wait-state execution from embedded Flash and external memories. The clock tree supports multiple sources: 4–26 MHz HSE crystal, 16 MHz HSI RC (±1%), or 32 kHz LSE for RTC, all routed through programmable PLLs to generate the system clock.

Does STM32F745IET7 support hardware encryption or secure boot?

No, the STM32F745IET7 does not include dedicated cryptographic accelerators (AES, HASH, PKA) or secure boot ROM. It relies on software-based cryptography libraries and external secure elements for advanced security. For hardware-accelerated crypto, ST recommends the STM32F767xx or STM32H7xx families, which integrate AES-128/256, SHA-256, and public-key accelerators.

Can the LCD-TFT controller drive RGB displays without external components?

Yes, the integrated LCD-TFT controller supports direct RGB interface (up to 24-bit) and 8080/6800 parallel modes, enabling connection to common TFT panels without external display drivers. It includes programmable polarity, pixel clock, and timing generators, and works with the Chrom-ART Accelerator™ for hardware composition - though external level shifters may be needed for 5 V panel interfaces.

What debug interfaces are supported and what trace capability exists?

The STM32F745IET7 supports SWD and JTAG debug interfaces via its SWJ-DP (Serial Wire JTAG Debug Port). It also integrates the Cortex-M7 Trace Macrocell™ (MTB), enabling instruction and data trace capture for real-time code profiling and timing analysis - essential for optimizing deterministic real-time behavior in motor control or audio processing applications.