The STM32F103C8T6 microcontroller has 64 KB of Flash, 20 KB RAM, 2x10-channel 12-bit A/D converter, 4x16-bit (IC/OC/PWM) timer, 2xSPI, 2x12C, 3USART, USB, CAN, 37 I/Os in a 48-pin 7 mm x 7 mm x 1.4 mm LQFP package.

The STM32F103x4 and STM32F103x6 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 32 Kbytes and SRAM up to 6 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, three general purpose 16-bit timers plus one PWM timer, as well as standard and advanced communication interfaces: up to two I2Cs and SPIs, three USARTs, an USB and a CAN.

The STM32F103xx low-density performance line family operates from a 2.0 to 3.6 V power supply. It is available in both the –40 to +85 °C temperature range and the –40 to +105 °C extended temperature range. A comprehensive set of power-saving mode allows the design of low-power applications.

The STM32F103xx low-density performance line family includes devices in four different package types: from 36 pins to 64 pins. Depending on the device chosen, different sets of peripherals are included, the description below gives an overview of the complete range of peripherals proposed in this family.

STM32F103C8T6 Features:

ARM 32-bit Cortex™-M3 CPU Core

72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access

Single-cycle multiplication and hardware division

Memories

64 or 128 Kbytes of Flash memory

20 Kbytes of SRAM

Clock, reset and supply management

2.0 to 3.6 V application supply and I/Os

POR, PDR, and programmable voltage detector (PVD)

4-to-16 MHz crystal oscillator

Internal 8 MHz factory-trimmed RC

Internal 40 kHz RC

PLL for CPU clock

32 kHz oscillator for RTC with calibration

Low power

Sleep, Stop and Standby modes

VBAT supply for RTC and backup registers

2 x 12-bit, 1 μs A/D converters (up to 16 channels)

Conversion range: 0 to 3.6 V

Dual-sample and hold capability

Temperature sensor

DMA

7-channel DMA controller

Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs

Up to 51 fast I/O ports

26/37/51 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

Debug mode

Serial wire debug (SWD) & JTAG interfaces

6 timers

Two 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

16-bit, motor control PWM timer with dead-time generation and emergency stop

2 watchdog timers (Independent and Window)

SysTick timer 24-bit downcounter

6 communication interfaces

21 x I2C interface (SMBus/PMBus)

2 × USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)

1 × SPI (18 Mbit/s)

CAN interface (2.0B Active)

USB 2.0 full-speed interface

CRC calculation unit, 96-bit unique ID