STMicroelectronics STM32F417IET6

Overview

STM32F417IET6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at up to 168 MHz (210 DMIPS), featuring 512 KB Flash, 192+4 KB SRAM (including 64 KB CCM), dual USB OTG (FS/HS), 10/100 Ethernet MAC with IEEE 1588 support, and hardware crypto acceleration (AES-128/192/256, SHA-1, MD5). It targets industrial control gateways requiring real-time connectivity, secure firmware updates, and deterministic network timing.

For engineers reviewing the STM32F417IET6 datasheet, STM32F417IET6 pinout, STM32F417IET6 application, or STM32F417IET6 equivalent, key selection criteria include its dual USB OTG capability with dedicated DMA, IEEE 1588v2 hardware timestamping for time-sensitive networking, triple 12-bit ADCs (7.2 MSPS interleaved), 140 GPIOs (138 5 V-tolerant), and integrated DCMI camera interface supporting 54 MB/s throughput.

Technical Context

The STM32F417IET6 implements a multi-bus AHB/APB architecture with ART Accelerator enabling zero-wait-state execution from Flash at 168 MHz. Its memory subsystem integrates 64 KB core-coupled memory (CCM) for latency-critical code/data, 512 KB main Flash with ECC, and flexible static memory controller (FSMC) supporting NAND/NOR/PSRAM.

Connectivity is defined by dual CAN 2.0B interfaces, three I²C (SMBus/PMBus), four USARTs (10.5 Mbit/s), two SPIs with muxed I²S, SDIO, and full-duplex USB OTG HS/FS controllers - the latter including on-chip full-speed PHY and ULPI interface for external high-speed PHYs.

Key Specifications

Pinout & Package

LQFP144 (20 × 20 mm) package with 144 pins, 140 general-purpose I/Os (138 5 V-tolerant), dual VCAP pins for internal regulator stability, and dedicated power/ground distribution for analog, digital, and USB domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F417VGT6, the STM32F417IET6 provides 58 additional GPIOs and DCMI for imaging, while versus STM32F427ZIT6 it trades graphics capability for hardware crypto and IEEE 1588v2-making it optimal for secure, time-synchronized industrial edge nodes.

Availability

STM32F417IET6 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, secure edge nodes, high-speed imaging terminals, and multi-protocol HMI controllers requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F417IET6 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.

The STM32F4 series targets high-performance embedded applications demanding real-time processing, rich connectivity, and hardware-accelerated security - particularly in industrial automation, medical devices, and networked edge equipment.

FAQ

What is the maximum operating frequency and associated DMIPS rating?

The STM32F417IET6 operates at up to 168 MHz with an integer performance rating of 210 DMIPS (Dhrystone 2.1), measured at 1.25 DMIPS/MHz. This rating assumes ART Accelerator enabled and zero-wait-state Flash execution - verified under standard test conditions per ST's DS8597 Rev 9 specification.

Does this MCU support IEEE 1588 Precision Time Protocol (PTP) hardware timestamping?

Yes. The integrated 10/100 Ethernet MAC includes dedicated IEEE 1588v2 hardware timestamping logic with sub-microsecond resolution, supporting both one-step and two-step PTP clock synchronization modes. Timestamp registers and event detection are accessible via standard ETH registers without CPU intervention.

What are the key differences between the USB OTG FS and OTG HS interfaces on this device?

The OTG FS interface uses internal full-speed PHY (PA11/PA12) and requires no external components. The OTG HS interface uses ULPI signals (e.g., HS_ULPI_CLK, HS_ULPI_Dx) to connect to external high-speed PHYs (e.g., USB3343), enabling 480 Mbps operation. HS mode requires dedicated DMA and separate power domain routing per ST reference design AN4291.

Is the DCMI (Digital Camera Interface) supported in the LQFP144 package, and what is its maximum throughput?

Yes. The DCMI is fully implemented in the LQFP144 package using PH13–PH15 and PI0–PI10 pins. It supports 8–14-bit parallel data widths and achieves up to 54 MB/s throughput - sufficient for 720p@30fps raw Bayer data capture - as confirmed in Section 2.2.32 and Table 5.3.27 of DS8597 Rev 9.