AIN31AIN22AIN13AIN04MODE5VSS6CS#7RD#8WR#9BUSY#10CLK#11D7/ALL#12D6/DIFF13DGND14D5/BIP15D4/INH16D3/PD17D2/A218D1/A119D0/A020REFOUT21REFIN22AGND23VDD24AIN725AIN626AIN527AIN428