SOIC Prototyping Adapters; Top Package Code: SO20A,SO20B; Top Pitch (mm): 1.27; Bottom Pitch (mm): 2.54; Top Pin Count: 20; Bottom Pin Count: 20; Top Interface: SMT Lands; Bottom Interface: 0.1 in. center male pins; Land Pattern InsideX (in.): 0.275; Land Pattern OutsideX (in.): 0.475; Part Description: SOIC Prototyping Adapter;