PIC16C554-04I/SOIC MCU OTP 512X14 18SOIC|MICROCHIP TECHNOLOGY|Lead free|RoHS Compliant PIC16C554T-04I/SO PIC16C554-04I/SSIC MCU OTP 512X14 20SSOP|MICROCHIP TECHNOLOGY|Lead free|RoHS Compliant PIC16C554T-04I/SS