STM32F103RFT6 – 32-bit ARM Cortex-M3 Microcontroller 768KB Flash 64-Pin LQFP

Datasheet
The STM32F103xF and STM32F103xG performance line family incorporates the high-performance ARM Cortex -M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory up to 1 Mbyte and SRAM up to 96 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer three 12-bit ADCs, ten general-purpose 16-bit timers plus two PWM timers, as well as standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2Ss, one SDIO, five USARTs, an USB and a CAN.