Item specifics
Description
STM32F765VIT6 is a Cortex-M7 MCU at 216 MHz with double-precision FPU, LQFP-100. 2 MB Flash, 512 KB SRAM, 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 (16 ch), 2×12-bit DACs, 17 timers (2× advanced motor control). 82 x 5 V-tolerant I/Os. 1.7–3.6 V, -40–85 °C. Doubles Flash to 2 MB with 512 KB SRAM and CAN FD for large-code and high-speed industrial communication.
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 (16 ch), 2×12-bit DACs Timers: 17 (2× motor control PWM/deadtime, 10× GP, 2× basic, 2× WDT) I/Os: 82 (5 V-tolerant) Package: LQFP-100
Industrial HMI, real-time Ethernet & CAN FD gateways, advanced motor control, audio processing, secure large-code terminals
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 82 I/Os in compact 100-pin package
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FAQ:
What is the STM32F765VIT6 and how does it differ from the STM32F767 series?
The STM32F765VIT6 is a 216 MHz Cortex‑M7 microcontroller with double‑precision FPU, 2 MB Flash, and 512 KB SRAM in an LQFP‑100 package. Unlike the STM32F767, it does not include a TFT‑LCD controller or Chrom‑ART accelerator. It is designed for high‑performance embedded control, industrial communication, and DSP‑intensive tasks that do not require a graphical display, offering a more focused feature set at a lower complexity.
Why would I choose the STM32F765VIT6 over an STM32F767 if it lacks graphics acceleration?
If your application does not need a display, the STM32F765VIT6 delivers the same CPU power, identical Flash/SRAM size, and the same advanced connectivity (Ethernet, USB HS, multi‑CAN) while removing unused silicon. This can simplify board routing, reduce pin count requirements, and fit into a smaller LQFP‑100 package, which is often easier to manufacture and prototype than higher‑pin‑count graphic‑focused parts.
Can the 2 MB Flash and 512 KB SRAM be fully utilized without a graphical user interface?
Absolutely. The generous memory is ideal for complex communication protocol stacks (Ethernet, CANopen, USB host/device), data logging, over‑the‑air update schemes, and DSP algorithms. You can store multiple application images for fail‑safe updates, large lookup tables for motor control, or extensive buffering for real‑time data streams, all without needing external memory.
Does the STM32F765VIT6 still support Ethernet and USB high‑speed even though it lacks an LCD controller?
Yes. It features a 10/100 Ethernet MAC with MII/RMII, a USB high‑speed OTG (with ULPI), and a full‑speed USB OTG. The absence of the LCD controller does not affect the high‑performance communication peripherals in any way, making it perfect for connected industrial gateways, protocol converters, and networked motor drives.
How does the double‑precision floating‑point unit benefit real‑time control and DSP applications?
The hardware double‑precision FPU accelerates 64‑bit floating‑point operations, which is critical for high‑accuracy motor control algorithms (e.g., field‑oriented control), digital power supplies, sensor fusion, and audio processing. It provides greater numerical stability than single‑precision implementations, reducing cumulative errors in long‑running control loops without resorting to slower software floating‑point libraries.
What communication interfaces does the STM32F765VIT6 offer? How many CAN, UART, and SPI ports are available?
It provides up to 3 CAN 2.0B interfaces, 6 USART/UART ports, 6 SPI/I2S, 4 I2C, and a quad‑SPI interface. With LQFP‑100, you can typically route all three CAN, Ethernet, USB HS, and still have room for multiple serial devices without pin conflicts, making it a highly capable industrial communication hub.
How does the STM32F765VIT6 compare with the STM32F765ZGT6? When should I choose LQFP‑100 over LQFP‑144?
Both share the same core and memory. The VIT6 uses an LQFP‑100 package with fewer I/Os, while the ZGT6 uses LQFP‑144, offering more pins for parallel interfaces or external memory buses. Choose the VIT6 when 100 pins are sufficient for your design and you want a smaller PCB footprint; pick the ZGT6 if you need additional I/Os to connect external SDRAM or a larger set of peripherals.
Is the LQFP‑100 package suitable for hand soldering and prototyping?
Yes. The 0.5 mm pitch and exposed leads allow drag‑soldering with a fine‑tip iron and flux. It is far easier to hand‑assemble and inspect than BGA packages, making it an excellent choice for lab prototypes, small‑batch runs, and designs that may require rework during development.
Can I perform over‑the‑air (OTA) firmware updates on the STM32F765VIT6 with its single‑bank 2 MB Flash?
Yes. The 2 MB Flash can be partitioned into two 1 MB application images for a safe A/B swap scheme, or divided into a bootloader, application, and download buffer. The 512 KB SRAM provides more than enough space to buffer the new firmware from Ethernet, USB, or a wireless module before verifying and writing it to Flash, ensuring a reliable update process.
What are the ideal applications for the STM32F765VIT6 given its lack of a graphics controller but strong DSP and connectivity?
It is purpose‑built for high‑end motor drives, industrial IoT gateways, real‑time DSP systems, multi‑axis controllers, power converters, and communication concentrators. The absence of a GPU makes it more cost‑effective for headless or display‑less systems where raw processing power, advanced connectivity, and precise control are the priorities.