STM32F767IIT6 ST Mainstream Arm Cortex-M7 High-Performance 32-bit MCU 2MB Flash 512KB SRAM CAN FD Ethernet USB OTG Crypto LQFP-176

STM32F767IIT6 Product Overview

STM32F767IIT6 is a Cortex-M7 MCU at 216 MHz with double-precision FPU, LQFP-176. 2 MB Flash, 512 KB SRAM (128 KB DTCM, 16 KB ITCM), LCD-TFT controller, Chrom-ART (DMA2D), Ethernet MAC, USB OTG HS/FS, DCMI, HW crypto (AES/3DES/HASH/RNG), CAN FD, FMC (SDRAM), Quad SPI, 2×SAI, SPDIF-Rx, 3×12-bit ADCs (24 ch), 2×12-bit DACs, 17 timers (2× advanced motor control). 140 x 5 V-tolerant I/Os. 1.7–3.6 V, -40–85 °C. Compared to STM32F767IGT6 (1 MB Flash), doubles Flash to 2 MB for large-code and high-bandwidth real-time control.

STM32F767IIT6 Core Features

Core: Cortex-M7 216 MHz, DPFPU + L1 cache + ART Memory: 2 MB Flash, 512 KB SRAM (128 KB DTCM, 16 KB ITCM) Display: LCD-TFT, Chrom-ART (DMA2D) Memory I/F: FMC (SDRAM/NOR/NAND) Connectivity: Ethernet MAC, USB OTG HS/FS, CAN FD, DCMI, SDIO, Quad SPI, 2×SAI, SPDIF-Rx, 4×USART+4×UART, 6×SPI/I2S, 3×I2C Security: AES/3DES/HASH (MD5/SHA-1), True RNG Analog: 3×12-bit ADCs (24 ch), 2×12-bit DACs Timers: 17 (2× motor control PWM/deadtime, 10× GP, 2× basic, 2× WDT) I/Os: 140 (5 V-tolerant) Package: LQFP-176

STM32F767IIT6 Applications

Industrial HMI, real-time Ethernet & CAN FD gateways, advanced motor control, audio processing, secure large-code terminals

STM32F767IIT6 Key Advantages

DPFPU + 2 MB Flash + 512 KB SRAM: Massive storage and compute power CAN FD + Ethernet: High-speed industrial bus and networking LCD-TFT + Chrom-ART: Smooth graphics Hardware crypto engine: Data security 140 I/Os in 176-pin high-integration package

Why Choose QIXINWEI

Years of experience in the electronics industry. Trusted by global customers.

Massive In-Stock Inventory – Ready to ship promptly.

BOM Matching Service – One-stop solution, save time.

PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs.

Cost-Effective & Efficient – Better channel, better cost.

A dedicated team makes your procurement smoother.

Contact us for BOM quotes or PCBA inquiries.

FAQ:

1. What is the STM32F767IIT6 and how does it differ from the F767ZGT6 and F767VIT6?
   The STM32F767IIT6 is a high‑performance Cortex‑M7 MCU with 2 MB Flash, 512 KB SRAM, Chrom‑ART accelerator, and a rich set of connectivity peripherals in an LQFP‑176 package. Unlike the ZGT6 (1 MB Flash, LQFP‑144) and VIT6 (2 MB Flash, LQFP‑100), the IIT6 provides the maximum I/O count of the F767 line—up to 140 pins—while keeping the same 2 MB Flash density. It is the go‑to choice when you need the largest firmware capacity and the most GPIOs to replace multi‑chip solutions.

2. How many usable I/O pins does the LQFP‑176 package offer? Can it replace an MCU plus a small FPGA for glue logic?
   It provides up to 140 general‑purpose I/O pins. With so many pins, you can often connect parallel interfaces, numerous sensors, multiple UARTs, SPI, and I2C devices, and still have pins left for a complex TFT display and keypad matrix. In many designs, this level of integration eliminates the need for external I/O expanders or small FPGAs, simplifying the BOM and PCB layout.

3. Can the 2 MB Flash store both a feature‑rich application and a large TouchGFX GUI with images and fonts?
   Absolutely. The 2 MB Flash holds a complete RTOS, TCP/IP stack, CANopen protocol, and still leaves over 1 MB for graphical assets—fonts, bitmaps, and even multiple screen configurations. This often means you do not need an external NOR Flash for GUI resources, making the single‑chip design more robust and cost‑effective.

4. Does the STM32F767IIT6 support Ethernet and USB high‑speed simultaneously while driving a TFT LCD?
   Yes. It includes a 10/100 Ethernet MAC, a USB high‑speed OTG (with ULPI), and a parallel TFT‑LCD controller up to XGA resolution. The 512 KB SRAM and intelligent DMA channels handle concurrent network traffic, USB data streaming, and display refresh without CPU starvation. This makes it ideal for connected industrial control panels and gateways.

5. What is the soldering difficulty for LQFP‑176? Can it be done by hand or does it require a reflow oven?
   LQFP‑176 has a 0.5 mm pin pitch. While it is possible to drag‑solder with a fine‑tip iron and plenty of flux, the high pin count makes hand soldering time‑consuming and prone to bridging. Most developers use a reflow oven or hot plate for prototypes, and the package is still far easier to inspect and rework than any BGA alternative.

6. How does the Chrom‑ART accelerator help with a 1024x768 display, and what is the performance without MIPI DSI?
   Chrom‑ART handles pixel‑format conversion, alpha blending, and bit‑block transfers in hardware. For a 1024×768 parallel RGB display, it can update the frame buffer and composite layers without CPU intervention, allowing smooth animations. The lack of MIPI DSI is not a limitation for the vast number of industrial and medical panels that still use the standard parallel RGB interface, and the chip’s built‑in LTDC controller manages timings directly.

7. How can the double‑precision FPU be used in a complex control system with the IIT6?
   The hardware double‑precision floating‑point unit accelerates 64‑bit math operations. In motor control, digital power supplies, or sensor fusion, it provides higher numerical accuracy and avoids the drift that can occur with single‑precision alone. Since the IIT6 has abundant I/O and memory, it can be the central controller for multi‑axis motion systems or scientific instruments that need both high computational precision and many peripheral connections.

8. Is the STM32F767IIT6 a good upgrade path from older STM32F4 series MCUs like the STM32F407/417?
   Yes. The IIT6 offers a significant performance boost (216 MHz vs. 168 MHz), double the Flash (2 MB vs. 1 MB), and the powerful Chrom‑ART accelerator. Its LQFP‑176 package is often pin‑compatible with the high‑end STM32F4 LQFP‑176 variants, allowing a smooth hardware migration. Existing HAL code can be ported with minimal changes.

9. Can the STM32F767IIT6 perform reliable OTA firmware updates with its single‑bank Flash architecture?
   Yes. The 2 MB Flash can be split into two application regions (e.g., 1 MB active and 1 MB update) using a custom bootloader. The 512 KB SRAM buffers the new image from Ethernet or USB, and a verified image is swapped into the active area. This provides a safe, dual‑image‑like OTA scheme without needing hardware dual‑bank Flash.

10. What are the most typical applications for the STM32F767IIT6, and why is the high pin count important?
    It is targeted at full‑featured industrial HMIs, PLC‑like controllers, advanced motor drives with rich operator interfaces, medical diagnostic terminals, and building energy management systems. The high pin count allows a single chip to manage a TFT display, Ethernet, USB, multiple serial communication ports, a keypad matrix, and numerous digital/analog I/Os—often replacing a traditional multi‑chip architecture and simplifying system design significantly.