CH643

Overview

CH643 is an industrial-grade RGB display driver microcontroller based on the QingKe RISC-V core. CH643 built-in USB and PD PHY, supports USB Host and USB Device function, USB PD and type C fast charging function, PWM drive RGB LED function, built-in programmable protocol I / O controller, provides OPA, CMP, USART, I2C, SPI, timer, 12-bit ADC, Touchkey, etc.

System Block Diagram

Features

• QingKe 32-bit RISC-V4C core processor, up to 48MHz system main frequency
• Support single-cycle multiplication and hardware division
• 20KB SRAM, 62KB Flash
• Multiple low-power modes: Sleep/Stop/Standby
• Power-on/power-off reset, programmable voltage monitor
• 8-channel general-purpose DMA controller
• Programmable Protocol I/O Controller (PIOC)
• Multi-group OPA/PGA/CMP
• Multi-group analog CMP
• RGB tri-color LED pulse width modulation LEDPWM
• Multiple external 12-bit ADC channels, multiple TouchKey channel detection
• Multiple timers, including advanced-control timer, general-purpose timer, Watchdog timer and SysTick
• Multiple USART serial ports: supports LIN and ISO7816
• 1 I2C interface and 1 SPI interface
• USB2.0 full-speed controller and PHY
• USB PD and Type C controllers and PHY
• Fast GPIO port, support 24 external interrupts
• 96-bit chip unique ID
• 2-wire serial interface interface SDI
• Package: QFN80, LQFP64, LQFP48, QSOP28

Selection Guide