Citizen Systems iDP-562 - Manual (Page 25)

iDP-562 User’s Manual
CITIZEN 20
6.4 Electric Characteristics
(a) Input Signal Level
All the input / output signals are of TTL level.
“HIGH” level 2.0 V MIN
“LOW” level 0.8 V MAX
(b) Output Signal Level
“HIGH” level 2.4 V MIN
“LOW” level 0.4 V MAX
(c) Input / Output Conditions
All the input signals are pulled up by 1 K ohms. (Fig. 7)
(Fig.7)
All the output signals are pulled up by 3.3 K ohms. (Fig. 8)
(Fig. 8)