NC1NC2O13GND4O25O36VCC7O48O59O610GND11O712O813O914O1015O1116O1217GND18O1319O1420O1521VCC22O1623O1724GND25O1826OE#27LE28GND29CLK30I1831GND32I1733I1634VCC35I1536I1437I1338GND39I1240I1141I1042I943I844I745GND46I647I548I449VCC50I351I252GND53I154NC55GND56