Product Summary

The STM32F103 is a Low-density performance line, ARM-based 32-bit MCU which 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. The STM32F103 offers 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.

Parametrics

STM32F103 absolute maximum ratings: (1)External 3.3 V supply voltage (including VDDA and VDD): –0.3 to 4.0 V; (2)Input voltage on five volt tolerant pin(2): VSS-0.3 to +5.5 V; (3)Input voltage on any other pin: VSS-0.3 to VDD+0.3 V; (4)Variations between different power pins: 50mV; (5)Variations between all the different ground pins: 50 mV.

Features

STM32F103 features: (1)Core: ARM 32-bit Cortex-M3 CPU; (2)32-to-128 Kbytes of Flash memory; (3)Clock, reset and supply management; (4)Low power; (5)2 x 12-bit, 1 μs A/D converters (16-channel); (6)7-channel DMA controller ; (7)Debug mode–Serial wire debug (SWD) & JTAG interfaces; (8)Up to 80 fast I/O ports; (9)Up to 7 timers; (10)Up to 9 communication interfaces.

Diagrams

STM32F103 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
STM32F103C4T6A
STM32F103C4T6A

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 L/D PERF LINE 32KB

Data Sheet

0-1: $2.75
1-10: $2.45
10-100: $2.00
100-250: $1.87
STM32F103C6T6
STM32F103C6T6

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 32KB 10KB RAM 2X12ADC

Data Sheet

Negotiable 
STM32F103C6T6A
STM32F103C6T6A

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 L/D Performance LINE

Data Sheet

0-1115: $1.57
1115-2000: $1.51
STM32F103C6T6ATR
STM32F103C6T6ATR

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 M/D 32 to 128 USB/CAN

Data Sheet

0-1785: $1.57
1785-2000: $1.51
2000-2400: $1.51
STM32F103C6T7A
STM32F103C6T7A

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 L/D Performance LINE

Data Sheet

0-985: $2.05
985-1000: $1.78
1000-2000: $1.73
STM32F103C6T6TR
STM32F103C6T6TR

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 Access Line

Data Sheet

Negotiable 
STM32F103C8T6
STM32F103C8T6

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC

Data Sheet

0-1: $3.43
1-10: $3.08
10-100: $2.53
100-250: $2.33
STM32F103CBT6
STM32F103CBT6

STMicroelectronics

ARM Microcontrollers (MCU) 32BIT Cortex M3 128K MED Performance LN

Data Sheet

0-1: $4.06
1-10: $3.32
10-100: $2.99
100-250: $2.75