User Guide

NSD-5
5. UI Module PAMS Technical Documentation
Page 6 Nokia Corporation Issue 1 05/02
The Engine Interface
NC = Not connected
Pin
Line
symbol
Parameter Minimum
Typical/
Nominal
Maximum Unit Notes
1NC
2 VBAT Battery voltage 3.2 3.6 4.2 V
3 NC Keyboard matrix row 0 0
0.7 x VBB
4 ROW4 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
5 ROW3 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
6 COL 2 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
7 ROW2 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
8 COL 1 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
9 ROW0 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
10 KBD_LED Current sink for key-
board LEDs
50 55 60 mA
11 ROW1 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
12 COL 3 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
13 COL 4 Keyboard matrix row 0 0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH
14 COL 0 Keyboard matrix row 0
Used for flip identifica-
tion
0
0.7 x VBB
0.3 x VBB
VBB
VLOW
HIGH