PIC18F2220-I/SP PIC18F2220-I/SS PIC18F2220T-E/SO PIC18F2220T-I/SO PIC18F2221-E/ML PIC18F2221-E/S0 PIC18F2221-E/SO PIC18F2221-E/SP PIC18F2221-E/SS PIC18F2221-I/ML