Nokia 5140 Manuales De Servicio
Nokia Customer Care
System Module and User Interface
NPL-4/5
Issue 1 05/04
Copyright © 2004 Nokia Corporation. All rights reserved.
Page 25
Display interface signals
Table 9: LCD connector
Pin
Signal
Min
Nom
Max
Condition
Note
Logic voltage
supply
Connected to
VIO
Logic voltage
supply
Connected to
VIO
0.7*VDDI
VDDI
Logic ’1’
Reset
0
0.3*VDDI Logic ’0’
Active low
1us
trw
Reset active
0.7*VDDI
VDDI
Logic ’1’
0
0.3*VDDI Logic ’0’
100ns
tsds
Data setup time
100ns
tsdh
Data hold time
0.7*VDDI
VDDI
Logic ’1’
0
0.3*VDDI Logic ’0’
6.5MHz
6.5MHz
Max frequency
250ns
tscyc
Clock cycle
100ns
tshw
Clock high
100ns
tslw
Clock low
0.7*VDDI
VDDI
Logic ’1’
Chip select
0
0.3*VDDI Logic ’0’
Active low
60ns
tcss
CXS low before
SCLK rising
edge
SCLK rising
edge
100ns
tcsh
CXS low after
SCLK rising
edge
Supply Voltage.
Connected to
VFLASH1
SCLK rising
edge
Supply Voltage.
Connected to
VFLASH1
7 NC
Not Connected
8 GND
0V
Ground
VLED-
(GND)
VLED
VLED
0V
LED off
Display
7.7V
LED on
7.2V
8.4V
Return current
10
Supply Voltage
for LEDs
for LEDs
2.86V
9
0V
5 CSX
6 VDD
2.70V
2.78V
4 SCLK
Serial clock
input
input
3 SDA
Serial data
1.88V
2 RESX
1 VDDI
1.72V
1.8V