Oki ML1120 - Interface Circuit; Signal Level

Technical Reference Guide – Interface specifications > 24
I NTERFACE CIRCUIT
S IGNAL LEVEL
Input/output level
PARAMETER SYMBOL MIN. MAX. UNITS
Input levels:
High (driven) V
IH
2.0 V
High (floating) V
IHZ
2.7 3.6 V
Low V
IL
0.8 V
Output levels:
Low OL 0.0 0.3 V
High (driven) OH 2.8 3.6 V
Output signal crossover
voltage
V
CRS
1.3 2.0 V
TxD+
Rs
TxD-
Rs
Full-speed
Buffer
+ 3.3V