What this 72 MHz Cortex-M3 brings to the board
The STM32F103RCT6: It carries 51 general-purpose I/O lines, a full set of connectivity options including CANbus, USB, SPI, I²C, and multiple UART/USART channels, plus a 16-channel 12-bit ADC and a 2-channel 12-bit DAC. This is the high-density variant in the 64-pin LQFP package, giving you the memory and peripheral headroom for motor control, industrial fieldbus nodes, or human-machine interfaces without stepping up to a larger footprint.
256 KB of Flash and 48 KB of SRAM are available on this device.
Peripheral set for industrial and embedded control
The peripheral list includes DMA, motor control PWM, programmable voltage detector (PVD), power-on reset (POR), brown-out reset (PDR), a temperature sensor, and a watchdog timer.