- SMD / SMT package: HTSSOP-14 5.0 x 4.4 mm 0.65 mm pitch. - Adapter pcb board for breadboard prototyping. - PCB has a solder mask layer to minimise the formation of solder bridges during soldering. - For connectors with 0.1 inch pitch, not included. - This adapter has a proto area of 2 x 10 pads on bottom copper. - A ground plane under the chip is available, with one pad connection.