MAX 158 EZ-Kit Lite Meaning
Pin # Name Pin # Name
1 AIN6 Pot Wiper #6
2 AIN5 Pot Wiper #5
3 AIN4 Pot Wiper #4
4 AIN3 Pot Wiper #3
5 AIN2 Pot Wiper #2
6 AIN1 Pot Wiper #1
7 Ref Out No Connect (NC)
8 DB0 15 Data Bit 0
9 DB1 16 Data Bit 1
10 DB2 17 Data Bit 2
11 DB3 18 Data Bit 3
12 RD_ 40 Read 
13 INT_ NC
14 GND 50 Ground
15 Vref - 50 Voltage Reference
16 Vref + 49 Voltage Reference
17 RDY NC
18 CS_ 50 Chip Select
19 DB4 19 Data Bit 4
20 DB5 20 Data Bit 5
21 DB6 21 Data Bit 6
22 DB7 22 Data Bit 7
23 A2 3 Address Bit 2
24 A1 2 Address Bit 1
25 A0 1 Address Bit 0
26 Vdd 49 Power
27 AIN8 Pot Wiper #8
28 AIN7 Pot Wiper #7