CH55X HDK

• https://w2.electrodragon.com/chip-cn/WCH/CH551-DAT/CH551-DAT.md
• https://w2.electrodragon.com/chip-cn/WCH/CH552-DAT/CH552-DAT.md
• https://w2.electrodragon.com/chip-cn/WCH/CH554-DAT/CH554-DAT.md
• https://w2.electrodragon.com/chip-cn/WCH/CH559-DAT/CH559-DAT.md

Selections guide

Type	USB	Footprint	Space	Basic	Extra
CH551	USB control +tranceiver USB Device USB2.0+1.0 64bytes buffer, FIFO, DMA	SOP-16	10K ROM 512b xRAM	24Mhz 3x Timer 2x Signal 2x PWM 1x SPI M/S	6x Touch 1x HS UART
CH552	CH551 + TypeC Master/Slave Detect	TSSOP-20 SOP-16 MSOP-10	16K ROM 1K xRAM 256b iRAM	24Mhz 3x Timer 2x Signal 2x PWM 1x SPI M/S	6x Touch 2x HS UART 4x 8bit ADC, CMP
CH554	CH551 + TypeC Master/Slave Detect USB Host + TypeC Charge Management	= CH552	14K Code Flash 128b DataFlash, byte R/W 2K Bootloader, support USB/ISP 1K xRAM 256b iRAM	24Mhz 3x Timer 2x Signal 2x PWM 1x SPI M/S	6x Touch 2x HS UART 4x 8bit ADC, CMP DMA
CH558	CH551	SSOP20 LQFP48	32K Code Flash 5K DataFlash 3K Bootloader, support USB/ISP 4K xRAM 256b iRAM	24Mhz 4x Timer 3x Signal 1x PWM 1x SPI M/S	2x HS UART, UART1 FIFO, simulate 485 8x 11bit ADC, CMP
CH559	USB HUB, 2x USB transceiver Host & Device USB 2.0 FAT12/FAT16/FAT32 U-disk	SSOP20 LQFP48	60K Code Flash 1K DataFlash 3K Bootloader, support USB/ISP 6K xRAM 256b iRAM	24Mhz 4x Timer 3x Signal 3x PWM SPI0 M/S, SPI1 M	2x HS UART, UART1 FIFO, simulate 485 8x 11bit ADC, CMP