STM32F103C6T6A

Mainstream Performance line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, motor control, USB and CAN

Program Memory Size: 32 kB
Data Bus Width: 32 bit
ADC Resolution: 12 bit
Maximum Clock Frequency: 72 MHz
Number of I/Os: 37 I/O
Data RAM Size: 10 kB
Operating Supply Voltage: 2 V to 3.6 V
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 85 C

data sheet: STM32F103R6T6A.pdf