PIC18F2550-I/SO PIC18F2550-I/SP PIC18F2550T-I/SO PIC18F2553-I/SO PIC18F2553-I/SP PIC18F2553ISP PIC18F2553T-I/SO PIC18F2580E/ML PIC18F2580-E/ML PIC18F2580-E/SO