Citizen CBM-910 Series - 5.3 Description of Input Output Signals

CBM-910 User’s Manual
CITIZEN 16
5.4 Electrical Characteristics
(1) Input signal level
RESET signal are at TTL level, while inputs other than this are at HCMOS level.
TTL Level HCMOS Level
“HIGH” level : 2.0V MIN “HIGH” level : 4.0V MIN
“LOW” level : 0.8V MAX “LOW” level : 1.0V MAX
(2) Output signal level
Output signal level is held at TTL.
“HIGH” level : 2.4V MIN
“LOW” level : 0.4V MAX
(3) I/O Conditions
INPUT SIGNALS
(HC373 or equivalent)
(HC04 or equivalent)
(7407 or equivalent)