
ASAHI KASEI
[AK4183]
Ordering Guide
AK4183VT 
Pin Layout 
MS0500-E-00 
 2006/04 
2
-40
°
C 
~
 +85
°
C 
10pin TMSOP (0.5mm pitch) 
Top View 
10
 9
6 
7 
8 
SCL 
SDA 
PENIRQN 
GND 
CAD0 
5 
4 
3 
2 
1 
VCC 
XP 
XN 
YP 
YN 
Pin/Function 
No. 
1 
2 
Signal Name 
VCC 
XP 
I/O
- 
I/O
Description 
Power Supply  
Touch Screen X+ plate Voltage supply 
 X axis Measurement: Supplies the voltage to X+ position input of the touch panel. 
 Y axis Measurement: This pin is used as the input for the A/D converter 
 Pen Pressure Measurement: This pin is the input for the A/D converter at Z1 measurement. 
 Pen Waiting State: Pulled up by an internal resistor (typ.10K ohm).   
Touch Screen Y+ plate Voltage supply 
 X axis Measurement: This pin is used as the input for the A/D converter 
 Y axis Measurement: Supplies the voltage to Y+ position input of the touch panel 
 Pen Pressure Measurement: Supplies the voltage to Y+ position input of the touch panel. 
 Pen Waiting State: OPEN state 
Touch Screen X- plate Voltage supply 
 X axis Measurement: Supplies the voltage to X- position input of the touch panel 
 Y axis Measurement: OPEN state 
 Pen Pressure Measurement: Supplies the voltage to X- position input of the touch panel 
 Pen Waiting State: OPEN state  
Touch Screen Y- plate Voltage supply 
 X axis Measurement: OPEN state 
 Y axis Measurement: Supplies the voltage to Y- position input of the touch panel 
 Pen Pressure Measurement: This pin is the input for the A/D converter at Z2 measurement. 
 Pen Waiting State: connected to GND. 
Ground 
Pen Interrupt Output  
This pin is “L” during the pen down on pen interrupt enabled state otherwise this pin is “H”. 
This pin is “L” during pen interrupt disabled state regardless pen touch. 
I
2
C bus Slave Address bit 0 
I
2
C serial data 
I
2
C serial clock  
3 
YP 
I/O
4 
XN 
I/O
5 
YN 
I/O
6 
7 
GND 
PENIRQN 
- 
O 
8 
9 
10 
CAD0 
SDA 
SCL 
I 
I/O
I