PIC18F4423-E/ML PIC18F4423-E/P PIC18F4423-E/PT PIC18F4423-I/ML PIC18F4423-I/P PIC18F4423-I/PT PIC18F4423T-E/PT PIC18F4423T-I/ML PIC18F4423T-I/PT PIC18F442-E/L