Z-World OP7100, User Manual

Page: 34 / 122

OP7100 34 s Hardware
Digital I/O
The OP7100 has eight CMOS/TTL-level digital inputs and eight CMOS/
TTL-level digital outputs. The digital inputs are provided with pullup
resistors, shown in Figure 3-11, to provide a known state before a digital
input is applied..
Figure 3-11. OP7100 Digital Inputs
The digital I/O are located on header J7, and are available through a con-
nector on the outside of the OP7100 back cover. Figure 3-12 shows the
pinout and the location of header J7.
Figure 3-12. OP7100 Header J7
10 k
Ω
+5 V +5 V
To Z180
Data
Bus
CMOS
Input
DIN[0–7]
10 12
J7
1
2
3
4
5
6
7
8
9 11 13 15 17 19
14 16 18 20
OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7
DIN0 DIN1 DIN2 DIN3 DIN4 DIN5 DIN6 DIN7
VCC
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
22 24 26 28 30 32 34
21 23 25 27 29 31 33
J7