What is it?

• WCH554 Usb Microcontrollers

What makes it special?

• Enhanced E8051 core CPU, 8-15 times faster than the standard MCS51, unique XRAM data fast copy command.
• Built-in 14KB Code Flash, 2KB BootLoader, support USB and serial ISP.
• Built-in 1KB XRAM and internal 256B iRAM; 128-byte DataFlash, support byte read and write.
• Built-in 6-channel capacitance detection module supports up to 15 touch keys and supports independent timer interrupts.
• Embedded USB controller and USB transceiver, support USB2.0 full speed and low speed host or device mode.
• Supports up to 64 bytes of data packets, built-in FIFO, support DMA.
• Supports USB Type-C master-slave detection, control or configuration of power supply levels, Type-C power management.
• Provides 3 sets of timers/counters, supports 2-way signal capture and 2-way PWM output.
• Provides two full-duplex asynchronous serial ports, all support high baud rate communication, UART0 is a standard MCS51 serial port.
• Provides a SPI communication interface, built-in FIFO, support master/slave mode.
• 4-channel 8-bit ADC analog-to-digital converter is provided to support voltage comparison.
• Built-in 24MHz clock source and PLL, can also choose the external crystal oscillator.
• Package: TSSOP20, MSOP10 and SOP16.