EXP33AUX2UC32AUX1UC31PRESN30CS29I/O28AUX227AUX126GNDC25CLK24RST23VCC22VUP21SAP20SBP19VDDP18SBM17GNDP16SAM15VREG14XTAL213XTAL112GND11OFFN10RSTN9EN_1.8VN8EN_5V/3VN7CLKDIV26CLKDIV15VDD(INTF)4CMDVCCN3PORADJ2I/OUC1