STMicroelectronics STM32F207IEH6

Overview

STM32F207IEH6 from STMicroelectronics is a 32-bit Arm® Cortex®-M3 microcontroller operating at up to 120 MHz, featuring 512 KB Flash, 128 + 4 KB SRAM, dual CAN 2.0B interfaces, 10/100 Ethernet MAC with IEEE 1588v2 hardware support, and USB 2.0 HS/FS OTG. It serves as a high-connectivity application processor in industrial gateways requiring real-time communication, protocol bridging, and deterministic network timing.

For engineers reviewing the STM32F207IEH6 datasheet, STM32F207IEH6 pinout, STM32F207IEH6 application, or STM32F207IEH6 equivalent, key selection considerations include its integrated Ethernet MAC with dedicated DMA, dual-CAN redundancy capability, camera interface (DCMI) for vision-assisted control, and ART Accelerator™ enabling zero-wait-state execution from Flash at 120 MHz.

Technical Context

The STM32F207IEH6 integrates a Cortex-M3 core with Memory Protection Unit (MPU), Adaptive Real-Time Accelerator (ART Accelerator™) for deterministic Flash execution, and multi-AHB bus matrix enabling concurrent access to Flash, SRAM, and peripherals. Its nested vectored interrupt controller (NVIC) supports 84 maskable interrupts with configurable priority levels.

It implements dual-domain clocking: APB1 (max 60 MHz) for low-speed peripherals (I²C, USART, CAN, timers), and APB2 (max 120 MHz) for high-speed I/O (GPIO, ADC, SPI). The Ethernet MAC operates on a dedicated AHB bus with IEEE 1588v2 timestamping logic and MII/RMII physical layer support.

Key Specifications

Pinout & Package

LQFP176 (24 × 24 mm, 0.5 mm pitch) package with 176 pins, thermally enhanced for sustained 120 MHz operation in industrial ambient temperatures up to +85°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F207IEH6, the STM32F407VGT6 trades IEEE 1588v2 hardware for FPU and higher clock speed, while the STM32H743ZIT6 shifts focus from parallel camera support to time-sensitive networking - making the F207 uniquely suited for cost-sensitive, timestamp-critical, vision-enabled industrial gateways.

Availability

STM32F207IEH6 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, machine vision edge nodes, and PLC communication modules requiring stable component supply across extended product lifecycles.

Supply support for STM32F207IEH6 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, specializing in microcontrollers, power management, sensors, and automotive ICs with ISO 9001-certified manufacturing.

The STM32F2 series targets industrial connectivity applications, emphasizing robust peripheral integration (Ethernet, dual CAN, USB OTG), real-time determinism, and extended temperature operation (–40°C to +105°C).

FAQ

What is the maximum operating temperature rating for STM32F207IEH6?

The STM32F207IEH6 is rated for industrial temperature range: –40°C to +85°C ambient. Its LQFP176 package features thermal pad design and specified junction-to-ambient thermal resistance (θ_JA = 26.5°C/W), enabling reliable operation at full 120 MHz clock under continuous load in enclosed enclosures without forced airflow.

Does STM32F207IEH6 support USB High-Speed device mode?

Yes - the STM32F207IEH6 integrates a dedicated USB 2.0 High-Speed/Full-Speed OTG controller with on-chip full-speed PHY and ULPI interface for external HS PHY. It supports HS device mode at 480 Mbps when paired with a compliant ULPI PHY such as SMSC USB334x, with dedicated DMA channels ensuring zero-copy transfers.

Can the Ethernet MAC operate in RMII mode with external PHY?

Yes - the STM32F207IEH6 supports both MII and RMII physical layer interfaces. In RMII mode, it uses 10 pins (REF_CLK, CRS_DV, TX_EN, TXD[1:0], RXD[1:0], RX_ER) to connect to standard RMII-compliant PHYs (e.g., LAN8720A), reducing pin count and PCB routing complexity versus MII while maintaining 100 Mbps throughput.

Is the DCMI interface capable of progressive scan video capture?

Yes - the 8–14-bit parallel Digital Camera Interface (DCMI) supports progressive scan formats including VGA (640×480), SVGA (800×600), and UXGA (1600×1200) at frame rates up to 30 fps. It includes hardware synchronization (VSYNC, HSYNC, PCLK), DMA-linked frame buffering, and embedded JPEG encoder compatibility via software libraries.