CBM America CBM-720 - Manual (Page 29)

CBM-710/720/730/750 User’s Manual
23 CITIZEN
(2) Electrical Characteristics
a) Input Signal Level
All input signals are TTL level.
"HIGH" level ................ 2.0V Min.
"LOW" level .................. 0.8V Max.
b) Output Signal Level
"HIGH" level ................. 2.4V Min.
"LOW" level .................. 0.4VMax.
c) Input/Output Conditions
All of the input signals are pulled up by 1K ohms.
All of the output signals are pulled up by 3.3K ohms.