Microchip PIC 18F4550 with 20 MHz Crystal Oscillator (With Boot loader Software). Supports Up to 48 MHz Operation
.Supports USB V2.0 with Speed range from 1.5Mbps to 12Mbps
.32 KB Programmable Flash Memory
EEPROM 256 byte
SRAM 2048 byte
.I/O Pins 35