EP29NC28NC27GNDREF26REFOUT25VDDREF24vePERst0#23CC_IR22VDDA21DIF0#20DIF019GNDO018GNDO117DIF1#16DIF115VDDO114vePERst1#13SDATA_3.312SCLK_3.311VDDDIG10GNDDIG9GNDINB8DIF_INB#7DIF_INB6VDDINB5VDDINA4DIF_INA#3DIF_INA2GNDINA1