- SMD / SMT package: PLCC-3 - Adapter board to SIL for breadboard prototyping of two units in a single PCB. - PCB has a solder mask layer to minimise the formation of solder bridges during soldering. - For connectors with 0.1 inch pitch, not included. - A ground plane under the chip works a small heatsink. Vias help in heat conduction to bottom copper.