http://www.futureelectronics.com/en/Search.aspx?dsNav=Ntk:ManufacturerPartNumberUpshiftedSearch%7c*CY8C42*%7c1%7c,Ny:True,Ro:0,Nea:True,N:587 . PSoC4 was designed for your low power application. It is the perfect chip to use in IOT and wearable applicati