STM32F103 Datasheet PDF – ARM-Based 32Bit MCU – ST

Part Number: STM32F103

Function: Medium-density performance line ARM-based 32-bit MCU

Package: LQFP 48, 64, 100 Pin Type

Manufacturer: STMicroelectronics




The STM32F103 is Medium-density performance line Arm®-based 32-bit MCU.

The STM32F103xx medium-density performance line family incorporates the highperformance ARM Cortex-M3 32-bit RISC core operating at a 72 MHz frequency, highspeed embedded memories (Flash memory up to 128 Kbytes 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.


Package :

STM32F103 datasheet



1. 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

2. Memories
– 64 or 128 Kbytes of Flash memory
– 20 Kbytes of SRAM

3. 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

Product Line



STM32F103 Datasheet

STM32F103 pdf

Other data sheets are available within the file: STM32F103C8, STM32F103CB, STM32F103R8, STM32F103RB


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