Electrical Characteristics; Input Signals - Citizen CBM-910 Bedienungsanleitung

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
"HIGH" level : 2.0V MIN
"LOW" level : 0.8V 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

CITIZEN
HCMOS Level
"HIGH" level : 4.0V MIN
"LOW" level : 1.0V MAX
16
CBM-910 User's Manual
(HC373 or equivalent)
(HC04 or equivalent)
(7407 or equivalent)