PIC18F442-I/P IC PIC18F442-I/PT PIC18F442T-E/ML PIC18F442T-I/L PIC18F442T-I/ML PIC18F442T-I/PT PIC18F4430-I/P PIC18F4430-I/PT PIC18F4431-E/ML PIC18F4431-E/P