ST7565S
<Turning the power (VDD - VSS) off : When command control is not possible.>
2) Reset (The LCD powers (VDD - VSS) are off.) → Power (VDD - VSS) OFF
• Observe
• When
For , make the power (VDD - VSS) falling characteristics longer or consider any other method. H is
t
L
>
t
H.
t
L
< tH, an irregular display may occur.
t
L
t
determined according to the external capacity C2 (smoothing capacity of V
capacity.
5
to V
1
) and the driver’s discharging
Power Off
Reset
t
L
V
DD
1.8V
RES
SEG
V
V
DD
DD
Since the power (VDD-VSS) is cut off,the
output comes not be fixed.
COM
About 1V:below Vth of the LCD Panel
V
V
V
V
V
1
2
3
4
5
t
H
<Reference Data>
V
V
5
voltage falling (discharge) time (
voltage falling (discharge) time (
t
t
H
H
) after the process of operation → power save → reset.
) after the process of operation → reset.
5
100
V
DD-VSS(V)
1.8
2.4
50
3.0
4.0
5.0
0
0.5
1.0
C2 : V
1
to V
5
capacity (uF)
Figure 31
Ver 0.6c
57/72
2009/09/07
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
