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Manufacturer Part #


STM32F Series 16 kB Flash 6 kB RAM ARM Based 32-Bit Microcontroller - LQFP-48

Mfr. Name: STMicroelectronics
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Product Specification Section
Technical Attributes
Attributes Table
Family Name: STM32F
Core Processor: ARM Cortex M3
Program Memory Type: Flash
Flash Size (Bytes): 16kB
RAM Size: 6kB
Speed: 72MHz
No of I/O Lines: 37
InterfaceType / Connectivity: CAN/I2C/SPI/USART/USB
Peripherals: CAN/I2C/On-Chip-ADC/PWM/SPI/USART/USB/Watchdog
Number Of Timers: 3
Supply Voltage: 2V to 3.6V
Operating Temperature: -40°C to +85°C
On-Chip ADC: 10-chx12-bit
Watchdog Timers: 2
Package Style:  LQFP-48
Mounting Method: Surface Mount
Features & Applications

The STM32F103C4T6A is a high-performance advanced ARM Cortex™-M3 32-bit RISC microcontroller. It has a core operating frequency of 72 MHz  with high-speed embedded memories and an extensive range of enhanced peripherals,I/Os connected to two APB buses.

It operating voltage ranging from 2.0 to 3.6 V, and offer standard communication interfaces with comprehensive set of power-saving modes, which allows the design for low-power applications.


  • ARM 32-bit Cortex™-M3 CPU Core
    • 72 MHz maximum frequency
    • Single-cycle multiplication and hardware division
  • Memories
    • 16 or 32 Kbytes of Flash memory
    • 6 or 10 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
  • Debug mode
  • 6 timers
  • 6 communication interfaces
  • CRC calculation unit, 96-bit unique ID
  • Packages are ECOPACK


  • Application control and user interface
  • Medical and handheld equipment
  • PC peripherals, gaming and GPS platforms
  • Industrial applications
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