WCH CH32F103C8T6

The CH32F1 series is an industrial-grade general-purpose microcontroller based on the 32-bit ARM Cortex-M3 core. It integrates on-chip clock security mechanism, multi-level power management, and a general-purpose DMA controller. It features 2 USB2.0 controllers, one of which supports USB host/device combo (low/full speed), multi-channel touch-key capacitive detection (TKey), and a 12-bit DAC module. It also embeds a multi-channel 12-bit ADC module, multiple timer groups, a CAN communication controller, and rich peripheral resources including I2C/USART/SPI interfaces. It meets the diverse application requirements of industrial, medical, and consumer markets.

• 32-bit ARM Cortex-M3 core
• Up to 72MHz system clock
• Single-cycle multiplication and hardware division
• Interrupt technology, Fault handling mechanism
• 20KB SRAM volatile data storage
• 64KB CodeFlash user application storage
• 3.75KB BootLoader system boot storage
• 128B system non-volatile configuration information storage
• 128B user-defined information storage
• Supply voltage range: 2.7V~5.5V, GPIO synchronous supply voltage
• Multiple low-power modes: Sleep/Stop/Standby
• VBAT independent power supply for RTC and backup registers
• Built-in factory-trimmed 8MHz RC oscillator, built-in 40KHz RC oscillator
• Built-in PLL, optional CPU clock up to 72MHz
• External 4MHz~16MHz high-speed oscillator support
• External 32.768KHz low-speed oscillator support
• Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD)
• 32-bit independent timer
• 2 analog signal output channels
• 16 TouchKey channel detection
• 3× 16-bit general-purpose timers with up to 4 channels for input capture/output compare/PWM/pulse counting and incremental encoder input
• 1× 16-bit advanced timer with general-purpose timer functions, dead-time control and emergency brake, providing PWM for motor control
• 2 watchdog timers (independent and windowed)
• System tick timer: 24-bit down counter
• USB2.0 FS device interface (full-speed and low-speed)
• USB2.0 FS host/device interface (full-speed and low-speed)
• 1× CAN interface (2.0B Active)
• 2× I2C interfaces (SMBus/PMBus support)
• 3× USART interfaces (ISO7816, LIN, IrDA and modem control support)
• 2× SPI interfaces (Master and Slave mode support)
• 51 I/O ports, all mappable to 16 external interrupts
• CRC calculation unit, 96-bit unique chip ID
• Debug mode: Serial Wire Debug (SWD) interface
• Package options: LQFP64M/LQFP48/QFN48X7

• Motor drive and application control
• Medical and handheld devices
• PC gaming peripherals and GPS platforms
• Programmable controllers
• Variable frequency drives
• Printers
• Scanners
• Alarm systems
• Video intercoms
• HVAC systems