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(1) Connector J3Table 3.5 lists the pin assignments of the 100-wire half-pitch connector J3 for connecting thePCA4029. And Figure 3.4 shows the pin layout of connector J3.Table 3.5 Pin assignments of connector J3Figure 3.4 Connector J3 pin layout
Line A Line B Line C Line D
Pin No.
Signal I/O
Pin No.
Signal I/O
Pin No.
Signal I/O
Pin No.
Signal I/O
1GND 1 GND 1 P13 I/O 1 P12 I/O
2GND 2 GND 2 D0 I/O 2 P11 I/O
3GND 3 GND 3 D1 I/O 3 P10 I/O
4GND 4 GND 4 D2 I/O 4 P03 I/O
5GND 5 GND 5 D3 I/O 5 P02 I/O
6GND 6 GND 6 D4 I/O 6 P01 I/O
7GND 7 GND 7 D5 I/O 7 P00 I/O
8 GND 8 GND 8 D6/CNTR0 I/O 8 P43/AIN7 I/O
9 GND 9 GND 9 D7/CNTR1 I/O 9 P42/AIN6 I/O
10 GND 10 GND 10 P50 I/O 10 P41/AIN5 I/O
11 GND 11 GND 11 P51 I/O 11 P40/AIN4 I/O
12 GND 12 GND 12 P52 I/O 12 P63/AIN3 I/O
13 GND 13 GND 13 P53 I/O 13 P62/AIN2 I/O
14 GND 14 GND 14 P20/SCK I/O 14 P61/AIN1 I/O
15 GND 15 GND 15 P21/SOUT I/O 15 P60/AIN0 I/O
16 GND 16 GND 16 P22/SIN I/O 16 P33 I/O
17 GND 17 GND 17 RESET I 17 P32 I/O
18 GND 18 GND 18 CNVSS - 18 P31/INT1 I/O
19 GND 19 GND 19 XOUT - 19 P30/INT0 I/O
20 GND 20 GND 20 XIN - 20 VDCE I
21 GND 21 GND 21 VSS 21 VDD
22 GND 22 GND 22 NC - 22 NC -
23 GND 23 GND 23 NC - 23 NC -
24 GND 24 GND 24 NC - 24 NC -
25 GND 25 GND 25 NC - 25 NC -