S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 539

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

4. Refresh
It is recommended that the operating modes and display contents be refreshed periodically to prevent the effect of
unexpected noise.
5. Precautions on powering off
<Powering off (V
Turn the power (V
the power (V
* The requirement "t
* If "t
Rev. 1.0a
L
< t
H
COM
", display failures can result.
SEG
V
DD
DD
V
V
V
V
V
V
0
1
2
3
4
SS
-V
DD
SS
0
-V
) off.
-V
L
> t
SS
SS
) off>
) save mode off -> Then, turn
H
" must be strictly observed.
Power save
V
V
SS
SS
Power OFF
t
H
Approximately 1V: Lower than the threshold voltage on the LCD panel.
t
1.8V
L
For t
Implement DDRAM refresh.
Display ON/OFF command
H
Select every command
, see the "Reference data".
Refresh sequence
EPSON
t
t
See the "Reference data" in the following section. It
also depends on a given LCD panel, thus actual tim-
ing must be determined after experimenting on your
LCD panel.
L
H
must be specified on software from MPU.
depends on discharging capability of the drivers.
Since power (V
output cannot be maintained at a fixed level.
DD
-V
SS
) is turned off,
S1D15A06 Series
12–35