PIC18F1220-E/SS PIC18F1220-H/ML PIC18F1220-H/P PIC18F1220-H/P 单片机MCU PIC18F1220-H/SO PIC18F1220-H/SS PIC18F1220-I/ML PIC18F1220-I/P PIC18F1220-I/SO PIC18F1220-I/SS