The STM32F411VCT6: That core includes a single-cycle multiply and a hardware FPU for DSP-style math, so it handles sensor fusion loops or motor-control FOC without a separate DSP chip. Program memory is 256 KB of Flash, and the 128K x 8 SRAM gives you room for multiple data buffers and a real-time OS heap. With 81 I/O lines in a 100-LQFP package, this is a mid-range part that fits control panels, drives, and IoT gateways where you need processing headroom but not the 2 MB Flash of the high-end F4 siblings.
Peripherals and connectivity — what is on the bus
The peripheral set covers the usual industrial bases: I2C, SPI, UART/USART, USB OTG, plus I2S for audio codec links and SDIO for external storage. Brown-out detect, POR, DMA, and a PWM timer suite are all on-chip. The internal oscillator means it can run without an external crystal for basic operation, though a precision clock is still the right call for USB or time-sensitive comms. Sixteen 12-bit ADC channels are available for analog inputs — enough for a multi-sensor acquisition front end.