STMicroelectronics STM32F217IGT7

Overview

STM32F217IGT7 from STMicroelectronics is a high-performance ARM® Cortex®-M3 microcontroller featuring 120 MHz CPU frequency, 1 MB Flash/128+4 KB SRAM, hardware cryptographic acceleration (AES-128/192/256, SHA-1, MD5), dual USB OTG (FS + HS), and integrated 10/100 Ethernet MAC with IEEE 1588v2 support - deployed in industrial gateways requiring secure, real-time connectivity and camera interface capability.

For engineers reviewing the STM32F217IGT7 datasheet, STM32F217IGT7 pinout, STM32F217IGT7 application, or STM32F217IGT7 equivalent, key selection considerations include its LQFP176 package with 140 I/Os (138 5 V-tolerant), triple 12-bit ADCs (6 MSPS interleaved), dual CAN 2.0B interfaces, and DCMI parallel camera interface supporting up to 48 MB/s - critical for embedded vision and protocol gateway designs.

Technical Context

The STM32F217IGT7 integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 120 MHz, coupled with a Memory Protection Unit (MPU) for robust task isolation in RTOS environments. Its multi-AHB bus matrix concurrently serves CPU, DMA, and peripheral access without contention.

It features dual USB controllers: OTG_FS with on-chip PHY and OTG_HS with dedicated DMA and ULPI support, plus a full-featured Ethernet MAC with MII/RMII physical layer interface and hardware timestamping for time-sensitive networking. The DCMI supports 8–14-bit parallel camera sensors with programmable synchronization and data capture triggers.

Key Specifications

Pinout & Package

LQFP176 (24 × 24 mm, 0.5 mm pitch) package with 140 user I/O pins - 138 of which are 5 V-tolerant, enabling direct interfacing with legacy industrial logic and sensor buses.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance ARM Cortex-M3 microcontroller applications.

Compared with STM32F217IGT7, the STM32F427VIT6 trades DCMI and SHA-1/MD5 crypto for FPU and higher clock speed, while the STM32H743VIT6 abandons legacy hash acceleration entirely in favor of Cortex-M7 performance - making both unsuitable for migration paths requiring unchanged camera or PKI stack compatibility.

Availability

STM32F217IGT7 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, machine vision terminals, and human-machine interfaces requiring stable component supply across extended product lifecycles.

Supply support for STM32F217IGT7 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 management ICs, sensors, and automotive-grade components since 1987.

The STM32F2 series targets high-end industrial and networking applications demanding rich connectivity, hardware security, and real-time determinism - bridging the gap between mainstream Cortex-M3 and application processors.

FAQ

What is the maximum operating temperature range for STM32F217IGT7?

The STM32F217IGT7 is rated for industrial temperature range: –40 °C to +105 °C ambient. This is validated per ST's qualification testing (JESD47) and supported by thermal derating curves in Section 6.3.7 of the datasheet. Operation beyond +105 °C risks SRAM retention failure and Flash programming instability.

Does STM32F217IGT7 support external SDRAM via FSMC?

No - the Flexible Static Memory Controller (FSMC) supports only NOR, PSRAM, NAND, and CompactFlash memories. SDRAM requires a dedicated SDRAM controller, which is absent in the F2 series. For SDRAM interfacing, ST recommends STM32F4 or STM32H7 series devices with dedicated SDRAM timing logic.

Can the two USB controllers operate simultaneously?

Yes - OTG_FS and OTG_HS can operate concurrently: one as host (e.g., USB flash drive), the other as device (e.g., CDC ACM virtual COM port). However, shared resources like USB interrupts and DMA channels require careful priority assignment in NVIC and DMA request mapping to prevent conflicts.

Is the Ethernet MAC compliant with IEEE 1588v2 Precision Time Protocol?

Yes - the integrated Ethernet MAC includes full hardware timestamping for PTP event messages (Sync, Delay_Req, Pdelay_Req, Pdelay_Resp) with sub-100 ns resolution. It supports both one-step and two-step clock correction modes, as documented in Section 3.26 and RM0033 reference manual.