S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 463

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

Rev. 1.1a
may be deteriorated in large load liquid crystal or
panels. In this case, the display quality can be improved
by setting HPM pin=LOW (high power mode). Whether
to use the power supply circuit in this mode should need
the display confirmation by actual equipment.
Also, if improvement is insufficient even for the high
power mode setting, use either the S1D15710D10B
supply liquid crystal drive power externally. In either
case, be sure to check the display thoroughly.
(1) When using the V
1 All the built-in power supply used
(Example of V
V
V
V
DD
SS
DD
Procedure
Step1
Step2
SS2
C
1
5
=V
C
C
C
C
C
voltage adjusting built-in resistor
2
2
2
2
2
SS
Turning off the built
, quadruple boosting)
C
C
C
C
(Command, state)
-in power supply
1
1
1
1
Power save
Description
V
V
CAP3–
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
SS2
OUT
5
R
DD
1
2
3
4
5
IRS
M/S
D7
1
*
D6
0
or
Figure 13
Command address
EPSON
D5
1
(2) When not using the V
D4
0
(Example of V
Command sequence when the built-in power
supply is turned off
To turn off the built-in power supply, set it in the power
save state and then turn off the power supply according
to the command sequence shown in Figure 13
(procedure).
V
V
D3
SS
DD
1
D2
0
C
D1
R
R
R
1
0
3
2
1
C
C
C
C
C
SS2
2
2
2
2
2
D0
0
1
=V
C
C
C
C
1
1
1
1
SS
5
, quadruple boosting)
voltage adjusting built-in resistor
V
V
CAP3–
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
SS2
OUT
5
R
DD
1
2
3
4
5
Power save command
IRS
(Both stand-by and
sleep can be useal)
M/S
S1D15710 Series
V
DD
11–25