The ST STM32F407VGT6J is a 32-bit ARM Cortex-M4 microcontroller from the STM32F4 series, running at 168 MHz with 1 MB of Flash program memory and 192K x 8 of RAM. It integrates a rich set of peripherals including Ethernet MAC, CANbus, USB OTG, multiple SPI/I²C/UART interfaces, a camera interface (DCMI), and an external memory interface (EBI/EMI). The part is supplied in a 100-LQFP (14x14 mm) package, operates from 1.8 V to 3.6 V, and is rated for the industrial temperature range of -40°C to 85°C. Typical applications include industrial control, motor drives, PLCs, communication gateways, and embedded vision systems where the Cortex-M4 DSP extensions and floating-point unit handle real-time signal processing.
168 MHz Cortex-M4 — what the core speed means for your design
The 168 MHz clock rate on the ARM Cortex-M4 core, combined with the single-cycle DSP instructions and hardware floating-point unit, gives this MCU enough throughput for sensor fusion, field-oriented motor control loops, and real-time audio processing without an external DSP. The 1 MB Flash and 192 KB SRAM leave room for a moderate firmware stack including a real-time OS, TCP/IP stack, and application code — enough for a networked industrial controller but not for high-resolution graphics frame buffers or large data-logging buffers.
This MCU includes Ethernet MAC, two CAN 2.0B interfaces, USB OTG FS/HS, UARTs, SPIs, I²Cs, I²S, a 16-channel 12-bit ADC, and a 2-channel 12-bit DAC.