Item specifics
Description
The STM32F407VGT6 is a Cortex-M4 high-performance MCU from STMicroelectronics in an LQFP-100 package. It runs at 168 MHz with FPU and ART Accelerator. It integrates 1 MB Flash, 192 KB SRAM (incl. 64 KB CCM), Ethernet 10/100 MAC (IEEE 1588 PTP, MII/RMII), USB 2.0 OTG (FS/HS, FS on-chip PHY), camera interface (DCMI), hardware crypto/HASH processor, two 12-bit DACs, three 12-bit ADCs (24ch, up to 7.2 MSPS in triple-interleaved mode), up to 17 timers (incl. 2 advanced motor control PWM/deadtime). 82 I/Os, all 5 V-tolerant. Supply 1.8–3.6 V, -40–85 °C. Compared to the STM32F407VET6 (512 KB Flash), this model doubles the Flash to 1 MB, meeting the demands of large firmware and complex protocol stacks, making it the memory flagship in this series within a 100-pin package. Compared to the STM32F401RET6 (84 MHz Cortex-M4), it doubles the core frequency, significantly upgrades memory and peripherals, and adds advanced features including Ethernet, DCMI, and a crypto engine, delivering an overall improvement in performance and connectivity.
Core: Arm Cortex-M4 168 MHz + FPU + ART Accelerator Memory: 1 MB Flash, 192 KB SRAM (incl. 64 KB CCM) Ethernet MAC: 10/100 Mbit/s, IEEE 1588 PTP hardware support, MII/RMII USB 2.0 OTG: FS + HS, FS on-chip PHY, HS requires external ULPI SDIO + HW Crypto: SD/MMC interface; AES 128/192/256, 3DES, HASH (MD5, SHA-1), RNG Camera Interface: 8–14-bit parallel DCMI 3×12-bit ADCs: 24 channels, 2.4 MSPS (up to 7.2 MSPS in triple-interleaved mode) 2×12-bit DACs: Buffered output Timers: Up to 17 (2× motor control PWM/deadtime/emergency stop, 12× 16-bit GP/quadrature encoder, 2× basic, 2× watchdogs, SysTick) Communication Interfaces: 4×USART + 2×UART (ISO7816/LIN/IrDA), 3×SPI (30 Mbit/s), 2×I2S, 3×I2C (SMBus), USB OTG, SDIO, Ethernet I/Os: 82, all 5 V-tolerant Low Power: Sleep/Stop/Standby, VBAT backup RTC Package: LQFP-100 (14×14×1.4 mm)
Industrial: PLCs, inverters, precision motor drives, industrial Ethernet gateways Motor Control: Dual-motor FOC, servo drives, pumps Image Capture: Simple camera monitoring, barcode scanning, industrial vision Network Communication: Ethernet control nodes, IoT gateways Consumer: Drone flight controllers, game controllers, high-end remote controls Security Applications: IoT security, payment terminals Portable Medical Devices
168 MHz Cortex-M4 + FPU: Strongest performance in this series for complex DSP and floating-point operations 1 MB Flash + 192 KB SRAM: Ample memory; Flash double that of VET6 to satisfy large firmware needs Ethernet + DCMI + Crypto Engine: Network communication, image capture, and data security in a 100-pin package Dual DACs + 3 ADCs: Comprehensive analog functions with multi-channel synchronous acquisition 17 Timers (incl. 2 Motor Control): Supports dual-motor FOC Mature STM32 Ecosystem: CubeIDE/CubeMX/HAL/LL
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FAQ:
What is the STM32F407VGT6 and how does it differ from the STM32F407VET6?
The STM32F407VGT6 is a 168 MHz Arm Cortex‑M4F microcontroller with 1 MB Flash, 192 KB SRAM, a DCMI camera interface, a 10/100 Ethernet MAC, USB OTG HS/FS, dual CAN, and an FMC supporting SDRAM, all in an LQFP‑100 package. The only difference from the VET6 is Flash size: the VGT6 offers 1 MB while the VET6 has 512 KB. All other features—CPU speed, SRAM, peripherals, and pin‑out—are identical. Choose the VGT6 when you need twice the code space for your firmware and graphical assets, but still want to stay in the compact 100‑pin footprint.
How does the STM32F407VGT6 compare with the STM32F407ZGT6? When should I pick the 100‑pin version?
Both share the same 1 MB Flash and 192 KB SRAM. The difference is the package: the ZGT6 uses an LQFP‑144 with up to 114 I/Os, while the VGT6 uses an LQFP‑100 with up to 82 I/Os. The VGT6 is the ideal choice when you need the full F407 feature set (Ethernet, camera, USB HS) but can work within 82 I/Os, and you want a smaller PCB and simpler layout. The ZGT6 gives you more I/Os for a full 32‑bit SDRAM and additional peripherals without pin conflicts.
Is 1 MB of Flash enough for a complex embedded application with a camera, Ethernet, and RTOS?
Absolutely. 1 MB provides generous room for FreeRTOS, LwIP, a USB stack, a DCMI camera driver, image processing libraries, and a web server, often with space left for future over‑the‑air updates or an A/B firmware partition. Many production designs—IP cameras, industrial gateways, and network‑connected controllers—use this exact memory configuration without external code storage.
Can the LQFP‑100 package really support a camera, Ethernet, and USB high‑speed at the same time?
Yes, with careful pin mapping. Using RMII for Ethernet (instead of the pin‑hungry MII) and an external ULPI PHY for USB HS, you can allocate a DCMI camera (8‑bit bus), an RMII Ethernet, USB HS, dual CAN, and several UART/SPI/I2C interfaces without conflicts. STM32CubeMX is essential for verifying the exact pin‑multiplexing. This makes the VGT6 a powerful single‑chip solution for compact networked cameras and gateways.
How much external SDRAM can I connect to the STM32F407VGT6? Is a 32‑bit bus possible?
The flexible memory controller (FMC) on the 100‑pin package supports SDRAM, but the data bus width is limited to 8‑ or 16‑bit due to the reduced number of I/Os. You can connect a 16‑bit wide SDRAM for frame buffers or data logging, and still have pins for other functions. For a full 32‑bit SDRAM interface, the 144‑pin ZGT6 is needed. The VGT6 is a good fit for moderate‑resolution camera applications where a 16‑bit SDRAM provides sufficient bandwidth.
How does the STM32F407VGT6 compare with the STM32F405? When should I choose the F407?
The STM32F405 lacks the Ethernet MAC and the DCMI camera interface, while the F407VGT6 includes both. Both share the same CPU speed and memory configuration (1 MB Flash, 192 KB SRAM). Choose the F407VGT6 when your design requires wired networking or a parallel camera input. If those peripherals are not needed, the F405 can be a more cost‑sensitive alternative with the same processing power.
Can I upgrade from an STM32F103 or STM32F2 design to the STM32F407VGT6? What benefits will I see?
Yes, the VGT6 is a common migration target. You get a much higher CPU clock (168 MHz vs 72 MHz for the F103), a single‑precision FPU with DSP instructions, Ethernet, USB HS, a DCMI camera, and larger SRAM (192 KB). The LQFP‑100 package is often pin‑compatible with high‑end F103 and F2 designs, enabling a smooth hardware upgrade. Existing HAL code can be reused with minimal changes, significantly boosting performance and connectivity.
How can I perform over‑the‑air (OTA) firmware updates with the STM32F407VGT6's 1 MB single‑bank Flash?
The 1 MB Flash can be logically partitioned into a bootloader, an active application, and a download buffer, or split into two 500 KB slots for an A/B scheme. The 192 KB SRAM buffers the new firmware during reception via Ethernet or USB. With a proper signature check, this provides a safe and reliable update mechanism without requiring hardware dual‑bank Flash.
What low‑power modes does the STM32F407VGT6 support, and can it be used in battery‑powered devices?
It supports Sleep, Stop, and Standby modes. In Stop mode with full SRAM retention, typical current is about 110 µA. The chip can wake quickly on Ethernet, USB, or external interrupts. Together with its FPU and DSP capabilities, it is suitable for battery‑powered industrial sensors and portable instruments that spend most of their time in low‑power sleep and wake to process and transmit data.
What are the most typical applications for the STM32F407VGT6, given its 1 MB Flash and 100‑pin package?
It is ideal for compact IP cameras, networked industrial sensors, Ethernet‑to‑CAN gateways, USB‑host data loggers, building automation controllers, and motor drives with network connectivity. The combination of 1 MB Flash, 192 KB SRAM, a camera interface, Ethernet, and a hand‑solderable LQFP‑100 package makes it a versatile, production‑ready platform for professional embedded systems where board space is at a premium.