CH32F103C8T6/LQFP-48

ARM Cortex-M3 32-bit Microcontroller -MCU

Product Description

        The CH32F1 series is an industrial-grade general-purpose microcontroller designed based on a 32-bit ARM® cortex™-M3 core. The on-chip integrates clock security mechanism, multi-level power management, universal DMA controller, etc.

         In particular, this series features two USB2.0 controllers. Among them, one supports USB host device integration (low full speed), multi-channel touch key capacitance detection (TKey) function and one 12-bit DAC conversion module. At the same time, it is also embedded with a multi-channel 12-bit ADC conversion module, multiple sets of timers, CAN communication controller, I²C/USART/SPI interface and other rich peripheral resources. It meets various application demands in the industrial, medical, consumer and other markets.

Product features

      Core

- 32-bit ARM Cortex-M3 core

- max 72MHz system main frequency

- Single-cycle multiplication and hardware division

- Interrupt technology, Fault handling mechanism

      Memory

- 20KB volatile data storage area SRAM

- 64KB user application storage area CodeFlash

- 3.75KB system BootLoader storage area

- 128B system non-volatile configuration information storage area

- 128B User-defined information storage area

      Power management and low power consumption

- Power supply range :2.7V to 5.5V, GPIO synchronous power supply voltage

- Multiple low-power modes: sleep/Stop/standby

- V_BAT  power supply independently powers the RTC and the backup register

      System clock, reset

- It is equipped with a factory-calibrated 8MHz RC oscillator

- It is equipped with a 40KHz RC oscillator

- Embedded PLL, with an optional CPU clock of up to 72MHz

- It supports high-speed oscillators ranging from 4MHz to 16MHz externally

- Externally supports a 32.768KHz low-speed oscillator

- Power-on/power-off reset (POR/PDR), Programmable Voltage monitor (PVD)

      Real-time clock RTC: 32-bit independent timer

      General-purpose DMA controller

- 7 channels, supporting circular buffer management

- Supported peripherals :Timer/ADC/DAC/USART/I²C/SPI

      12-bit digital-to-analog conversion DAC

- 2 analog signal output channels

      12-bit analog-to-digital conversion ADC, 1us conversion time

- Conversion range: 0 to V_DDA

- 16 external signal channels +2 internal signal channels

- On-chip temperature sensor

- Detection of 16 TouchKey channels

       Seven timers

- Three 16-bit general purpose timers providing up to four channels for input capture/output comparison /PWM/ pulse counting and incremental encoder inputs

- A 16-bit advanced timer with universal timer function and built-in dead-time control and emergency brake, providing PWM for motor control

- Two watchdog timers (independent and windowed)

- System time timer: 24-bit self-decrement counter

      10 standard communication interfaces

- USB 2.0FS device interface (full speed and low speed)

- USB 2.0FS host/Device interface (full speed and low speed)

- A CAN interface (2.0B active)

- Two I²C interfaces (supporting SMBus/PMBus)

- Three USART interfaces (supporting ISO7816 interface, LIN, IrDA interface and modulation and demodulation control)

- Two SPI interfaces (supporting Master and Slave modes)

      Fast GPIO port

- There are 51 I/O ports, and all I/O ports can be mapped to 16 external interrupts

      Security features: CRC calculation unit, 96-bit chip unique ID

      Debugging mode: Serial Single-wire Debugging (SWD) interface

Product specification

          The CH32F1 series MCU products feature a high-performance ARM®Corte™-M3 32-bit RISC core with a maximum operating frequency of 72MHz. They are equipped with high-speed memory and adopt a prefetching method to enhance instruction access speed. In the system structure, multiple buses operate synchronously. It provides rich peripheral functions and enhanced I/O ports. This series of products is equipped with 1 12-bit ADC module, 1 12-bit DAC module, 4 groups of 16-bit universal timers, multi-channel touch key capacitance detection (TKey), and other functions. It also includes standard communication interfaces :2 I²C interfaces, 2 SPI interfaces, 3 USART interfaces, 1 CAN interface, and 2 USB2.0 full-speed interfaces (full/low-speed communication).

Resource allocation for CH32F103x product

	CH32F103C6T6	CH32F103C8T6	CH32F103C8U6	CH32F103R8T6
Number of chip pins	48	48	48	64
Flash memory (bytes)	32K	64K	64K	64K
SRAM(bytes)	10K	20K	20K	20K
Number of GPIO ports	37	37	37	51
CPU main frequency	Max: 72MHz
Working voltage	2. 7V~5. 5V
Working temperature	Industrial grade :-40℃ to 85℃

Product application

- Motor drive and application control

- Medical and handheld devices

- PC game peripherals and GPS platforms

- Programmable controller

- Frequency converter

- Printer

- Scanner

- Alarm system

- Video intercom

- Heating, ventilation, air conditioning systems and other occasions.

Products photography