PIC18F55K42 PIC18F55K42-E/MV PIC18F55K42-E/PT PIC18F55K42-I/MV PIC18F55K42-I/PT PIC18F55K42T-I/MV PIC18F55K42T-I/PT PIC18F55Q24-E/6LX PIC18F55Q24-E/PT PIC18F55Q24-I/6LX