STM32F103C8T6 product image


Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces

The STM32F103C8T6 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 128Kbytes and SRAM up to 20 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 STM32F103C8T6 performance line family operates in the −40 to +105 °C temperature range, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows to design low-power applications.


The complete STM32F103xx performance line family includes devices in 4 different package types: from 48 pins to 100 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


●Core: ARM 32-bit Cortex™-M3 CPU

– 72 MHz, 90 DMIPS with 1.25 DMIPS/MHz

– Single-cycle multiplication and hardware division

– Nested interrupt controller with 43 maskable interrupt channels

– Interrupt processing (down to 6 CPU cycles) with tail chaining


– 32-to-128 Kbytes of Flash memory

– 6-to-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 quartz oscillator

– Internal 8 MHz factory-trimmed RC

– Internal 32 kHz RC

– PLL for CPU clock

– Dedicated 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 (16-channel)

– Conversion range: 0 to 3.6 V

– Dual-sample and hold capability

– Synchronizable with advanced control timer

– Temperature sensor


– 7-channel DMA controller

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

● Debug mode

– Serial wire debug (SWD) & JTAG interfaces

● Up to 80 fast I/O ports

– 32/49/80 5 V-tolerant I/Os

– All mappable on 16 external interrupt vectors

– Atomic read/modify/write operations

● Up to 7 timers

– Up to three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter

– 16-bit, 6-channel advanced control timer: up to 6 channels for PWM output Dead time generation and emergency stop

– 2 x 16-bit watchdog timers (Independent and Window)

– SysTick timer: a 24-bit downcounter

● Up to 9 communication interfaces

– Up to 2 x I2C interfaces (SMBus/PMBus)

– Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)

– Up to 2 SPIs (18 Mbit/s)

– CAN interface (2.0B Active)

– USB 2.0 full speed interface


STM32F103C8T6 Applications


●Motor drive and application control

● Medical and handheld equipment

● PC peripherals gaming and GPS platforms

● Industrial applications: PLC, inverters, printers, and scanners

● Alarm systems, Video intercom, and HVAC

External 3.3 V supply voltage (including VDDA and VDD) VDD–VSS–0.3 to 4.0V
Input voltage on five volt tolerant pin VINVSS-0.3 to +5.5
Input voltage on any other pin VINVSS-0.3 to VDD+0.3
Variations between different power pins |?VDDx|50 mA
Variations between all the different ground pins |VSSX ??VSS|50 mA
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