Nokia 9000i - Page 124

After Sales
Technical Documentation
RAE/RAK–1N
PDA Hardware
Page 6 – 12
Original, 08/96
Table 6. DC characteristics of LCDM flex connector on PDA module
Pin /
Type
Line Symbol Mini-
mum
Typi-
cal /
Nomi-
nal
Maxi-
mum
Notes
6–3 / UIF LCMUIF(3:0)
0V 0.7V Output/Input low
keypad
row lines/
4.65V 4.95V Output/Input high
display
data lines
7 / UIF LCMUIF4
0V 0.7V Output/Input low
keypad
row
read/write
4.65V 4.95V Output/Input high
strobe for
LCD driv-
er
8 / UIF LCMUIF5
0V 0.7V Output/Input low
keypad
row
LCD driv
4.65V 4.95V Output/Input high
LCD
driv
-
er register
select
9 / UIF LCMUIF6
0V 0.7V Output/Input low
enable
strobe for
4.65V 4.95V Output/Input high
LCD driv-
er
14–11 /
UIF
LCMCOL(3:0)
0V 0.7V Output/Input low
Keypad
column
UIF
4.65V 4.95V Output/Input high
column
write
15 / UIF BACKLIGHTO
0V 0.7V Output low, back-
lights off
Display
and key-
p
ad illu
4.65V 4.80V 4.95V Output high, back-
lights on
pad
illu
-
mination
control
16 / UIF LCMXPRON
0V 0V 0.7V Input low, power
on/off
Power
ON/OFF
k
4.65V Floating when inac-
tive. A pull–up in
PSL+.
key
21–18 /
PDALCD
LCDD(3:0)
0.4 V Output low
PDA
LCD
PDALCD
2.735 V Output high
LCD
,
Data lines
22 /
PDALCD
LP
0.4 V Output low
PDA
LCD Line
PDALCD
2.735 V Output high
LCD
,
Line
pulse
23 /
PDALCD
PCLK
0.4 V Output low
PDA
LCD Pix
PDALCD
2.735 V Output high
LCD
,
Pix
-
el clock