The Lcd Module Interface - Nokia NSE–3 SERIES Service Manual

PAMS
Technical Documentation

The LCD Module Interface

Pin Line
Symbol
1 VL Supply voltage
2 SCLK Serial clock input
3 SDA Serial data input
4 LCDCDX Control/display data flag input
5 LCDCSX Chip select input
6 OSC** External clock for LCD
7 UDGND* Ground
8 VOUT DC/DC voltage converter output
9 LCDRSTX Reset
* Ground position is on connector NOT BATTERY.
** External oscillator is not used in UE4.
Viewing trought LCD cell
Original 11/97
Parameter
0.7xVBB
0.7xVBB
0.7xVBB
0.7xVBB
9
Display Driver
LCD Module Interface
UI Module UE4
Mini- Typical Maxi-
mum / Nomi- mum
nal
2.7 2.8 2.85
300
0 4.0
0 VBB
0 0.3xVBB
VBB
0 0.3xVBB
VBB
0 0.3xVBB
VBB
30.4 32.0 33.6
0
9
0 0.3xVBB
VBB
1
Unit Notes
V
uA
MHz VBB = 2.7V
V
Control
Data
Active
kHz Connected to
VBB on UI
V
Active
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