PWRGD/PWRDNb1XIN/CLKIN2XOUT3VDDX4VSSR5SDA6SCLK7SS_EN8GND9VDD10GND11DIFF_012DIFF_0b13OE_0b14VDD_IO15OE_1b16DIFF_117DIFF_1b18VDDA19GND20GND21