Nokia NHM-7 series, Service Manual, Page: 29 / 212

NHM–7
System Module & UI
PAMS Technical Documentation
Page 17
Issue 1 10/2001
Nokia Corporation
Note Condition Max Nom Min Signal Pin
4 ROW(3) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix row 3
5 COL(2) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix column 2
6 ROW(2) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix row 2
7 COL(1) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix column 1
8 ROW(0) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix row 0
9 KLIGHT VBAT
0.3xVBAT LED off
LED on two colour led
control
10 ROW(1) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix row 1
11 COL(3) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix column 3
12 COL(4) 0.7xVIO
0 VIO
0.3xVIO High
Low Keyboard ma-
trix column 4
13 GND 0V
14 GND 0V
15 GND 0V
16 GND 0V
LCD connector
Pin Signal Min Nom Max Condition Note
1 XRES
0.8*VIO
0
VIO
0.22*VIO
Logic ’1’
Logic ’0’
Reset
Active low
100ns t
rw
Reset active
2 XCS 0.8*VIO
0
VIO
0.22*VIO
Logic ’1’
Logic ’0’
Chip select
Active low
130ns t
css
XCS low before
SCLK rising
edge
130ns t
csh
XCS low after
SCLK rising
edge
300ns t
csw
XCS high pulse
width
3 GND 0V
4 SDA 0.8*VIO
0
VIO
0.22*VIO
Logic ’1’
Logic ’0’
Serial data
(driver input)
0.7*VIO
0
VIO
0.3*VIO
Logic ’1’
Logic ’0’
Serial data
(driver output)
100ns t
sds
Data setup time
100ns t
sdh
Data hold time