Keyboard Interface Electrical Characteristics - Nokia RM-132 Service Manual & Parts Manual

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Keyboard interface electrical characteristics

Description Parameter
High-level V
IH
input voltage
Low-level V
IL
input voltage
High-level V
OH
output
voltage
Page 9 –30
Figure 95 Front side of the board
Min Typ
0.65* V V
DDS DDS
-0.3 0
1.62 V
DDS
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
Max Unit
0.3+ V V
DDS
0.35* V V
DDS
1.98 V
RM-132; RM-133
System Module
Notes
Row
Row
Column
Issue 1