I.C1I.C2AGND3I.C4I.C5ECGP6ECGN7AGND8CAPP9CAPN10CPLL11DGND12DVDD13FCLK14CSB15SCLK16SDI17SDO18OVDD19INT2B20INTB21AVDD22VREF23I.C24VCM25I.C26VBG27AGND28EP29