What is it?

• CH558 WCH Usb Microcontrollers

What makes it special?

• Enhanced E8051 core CPU, 8-15 times faster than standard MCS51, fast XRAM data replication.
• Built-in 32KB Code Flash, 5KB Data Flash and 3KB BootLoader, Support USB or Serial ISP.
• Built-in 4KB XRAM and internal 256B RAM.
• Built-in DMA controller supporting USB and Timer3, ADC and LED control.
• Embedded USB controller supporting USB2.0 full speed and low speed devices.
• Provides 4 groups of timers/counters, supports 3 pin signal capture and 1 PWM output.
• Provides two full-duplex asynchronous serial ports, serial port 1 built-in 8-byte FIFO, support for 485-mode data transceiver.
• Provides 1 SPI communication interface, built-in FIFO, support master/slave mode.
• 8-channel 10/11-bit ADC analog-to-digital converter multiplexed with GPIO.
• Built-in clock and PLL can also support external crystal.
• Package: SSOP20, LQFP48