VL-PS-PDA320240D-03 REV. A
(PDA320240D-03)
JUN/2005
PAGE 9 OF 17
4. Electrical Specifications
4.1 Interface signals
Table 4(A): Pin description (LCD Driver)
Pin No.
Symbol
FLM
M
Description
1
2
Input/output for chip select or data of the shift register.
AC signal input for LCD driving waveform
-The input signal is level-shifted from logic voltage level to the LCD
driver voltage level, and it controls the LCD driver circuit
-Normally, inputs a frame inversion signal.
The LCD driver output pin’s output voltage level can be set using the
shift register output signal and the FR signal.
3
4
5
CL1
Latch pulse input/shift clock input for the shift register.
Display data shift clock input for segment mode.
Control input for deselect output level.
CL2
____________
D-OFF
6
DB0
DB1
DB2
DB3
VDD
VSS
VEE *
VSS
NC
Input pin for display data.
7
8
9
10
11
12
13
14
15
16
Power supply for logic.
Ground (0V)
Positive power supply for LCD driving voltage. *
Ground (0V)
No connection
A
Anode of backlight
K
Cathode of backlight.
* This pin should be NC (No Connection) when Built-in DC/DC converter is used
Table 4(B): Pin description (TOUCH PANEL)
Pin No.
17
Symbol
TP_R
TP_D
TP_L
TP_U
Description
RIGHT Input Position
BOTTOM Input Position
LEFT Input Position
TOP Input Position
18
19
20
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