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NSB-7
UI Module
PAMS Technical Documentation
Page 6
ã
Nokia Mobile Phones Ltd.
Issue 1 06/00
LCD Module Interface
Figure 2: View through LCD Cell
Pin
Line
Symbol
Parameter
Min
Typical
Max
Unit
Notes
1
VBB
Supply voltage
2.7
2.8
2.9
300
V
uA
2
SCLK
Serial clock input
0
0
4.0
VBB
MHz
VBB=2.7V
3
SDA
Serial data input
0
0.7 x VBB
0.3 x VBB
VBB
V
4
LCDCDX
Control/display
data flag input
0
0.7 x VBB
0.3 x VBB
VBB
V
Control
Data
5
LCDCSX
Chip select input
0
0.7 x VBB
0.3 x VBB
VBB
V
Active
6
OSC
External clock for
LCD
30.4
32.0
33.6
kHz
Connected to VBB
on PCB
7
GND
Ground
0
V
8
VOUT
DC/DC voltage
converter output
9
V
9
LCDRSTX
Reset
0
0.7 x VBB
0.3 x VBB
VBB
V
Active
Display Driver
1
9
Viewing through LCD cell