ST STM32F103x6 Manual

Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to 

change without notice.

July 2007

  Rev 2

1/67

1

STM32F103x6

STM32F103x8 STM32F103xB

Performance line,  ARM-based 32-bit MCU with Flash, USB, CAN,

seven 16-bit timers, two ADCs and nine communication interfaces

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

■

Memories

– 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

– V

BAT

 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

■

DMA

– 7-channel DMA controller 

– Peripherals supported: timers, ADC, SPIs, 

I

2

Cs 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 I

2

C 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 

Table 1.

Device summary

Reference

Root part number

STM32F103x6 STM32F103C6, STM32F103R6

STM32F103x8

STM32F103C8, STM32F103R8 

STM32F103V8

STM32F103xB STM32F103RB STM32F103VB

LQFP64

10 x 10 mm

LQFP100

14 x 14 mm

LQFP48

7 x 7 mm

BGA100

10 x 10 mm

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