A3/SDI/DNA1A4/CLK/UPA2A53MOD04MOD15B56B4/UPB7B3/DNB8B2/S1B9B1/S0B10INB+11INB-12GND13+5V14GND15B016OUTB+17OUTB-18ENB19LATB20LATA21ENA22OUTA-23OUTA+24A025GND26+5V27GND28INA-29INA+30A1/SDO/S0A31A2/CS/S1A32EP33