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2 electrical characteristics – Citizen Systems CBM-231 User Manual

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CBM-230/231 User’s Manual

18

CITIZEN

6.3.2 Electrical Characteristics

(1) Input signal level

All input signals are at the TTL level.

"HIGH" level: 2.0 V at minimum

"LOW" level : 0.8 V at maximum

(2) Output signal level

All output signals are at the TTL level.

"HIGH" level: 2.4 V at minimum

"LOW" level : 0.4 V at maximum

(3) Input/output conditions

All input signals are pulled up at 3.3 k

.

All output signals are pulled up at 3.3 k

.