User Guide

Nokia Customer Care System Module
RH-37
Issue 1 07/04 Nokia Corporation Page 31
LCD connector
The TE signal is not used.
Table 10: LCD connector
Pin
No:
Description Type Symbol Parameter Min Typical Max Unit
1 Power supply OUT VLED- LED power supply current 15 mA
2 Power supply
voltage
IN VDDI Operating voltage 1.65 1.8 1.95 V
3 Ground - GND
4 Bidirectional
serial data
I/O SDA Input voltage high 0.7 x
VDDI
VDDI V
Input voltage low 0 0.3 x
VDDI
Output voltage high @ -
1.0 mA
0.8 x
VDDI
VDDI
Output voltage low @ -
1.0 mA
00.2 x
VDDI
5 Chip select IN CSX Input voltage high 0.7 x
VDDI
VDDI V
Input voltage low 0 0.3 x
VDDI
6 Ground - GND
7 TE output to syn-
chronise MCU to
frame writing
OUT TE Output voltage high @ -
1.0 mA
0.8 x
VDDI
VDDI V
Output voltage low @ -
1.0 mA
00.2 x
VDDI
8 Reset IN RESX Input voltage high 0.7 x
VDDI
VDDI V
Input voltage low 0 0.3 x
VDDI
9 Serial clock IN SCL Input voltage high 0.7 x
VDDI
VDDI V
Input voltage low 0 0.3 x
VDDI
10 Ground - GND
11 Power supply
voltage
IN VDD Operating voltage 2.6 2.75 2.9 V
12 Power supply IN VLED+ LED power supply current 15 mA