S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 462

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

S1D15710 Series
<Setting example: When setting V
Set the value of the electronic control register as the
intermediate value (D5, D4, D3, D2, D1, D0) =
(1,0,0,0,0,0). From the foregoing we can establish the
expression:
When R
1, it follows that
When R
• When using the V
• The V
• Since the V
Liquid crystal voltage generator circuit
The V
the V
crystal drive.
Further, the V
converted by the voltage follower and supplied to the
liquid crystal drive circuit.
11–24
voltage adjusting circuit and voltage follower circuit are operated together needs to be set using the power control
set command. Also when the boosting circuit is OFF, the voltage needs to be applied from V
when using the V
1
5
, V
voltage is resistor-split within an IC and generates
V
R
2
11
7
2
2
, V
REG
=0 , to obtain V
V
=R
pin is valid only when the V
V
V
Variable range
Pitch width
3
5
1
2
R
, and V
, V
, to obtain V
1
pin has high input impedance, noise must be taken into consideration such as for short and shielded lines.
1
31
2
, V
2 1
R
.
R
1
5
5
3
V
3
R
4
, and V
voltage adjusting built-in resistor (IRS pin=HIGH).
R
3
voltage adjusting built-in resistor or electronic control function, the state where at least the V
potentials required for the liquid
R
1
R
2
2
Ra'
Rb'
5
5
=–9 V from Expression C-
=–7V, it follows that
4
1
potentials are impedance-
1
Stand-alone R1
Stand-alone R2
Stand-alone R2
Stand-alone R3
–11.1
162
Min.
31
162
31
5
=–7 to –11 V at Ta=25 C>
(Expression C-2)
(Expression C-3)
5
2 1
voltage adjusting built-in resistor (IRS pin=LOW). Set the V
2 1
.
.
to
V
Figure 12
R
Table 15
EPSON
R
2
Typ.
–9.0
67
Also, suppose the current applied between V
is 5 A.
It follows that
Therefore from Expressions C-2, C-3, and C-4, we have
At this time, the V
width based on electronic volume function are given in
the following Table when V
Using the bias set command allows you to select a
desired bias ratio from 1/9 or 1/7.
High power mode
The power supply circuit incorporated in the S1D15710
series has the ultra-low power consumption (normal
mode: HPM=HIGH). Therefore the display quality
V
+
–
EV
(Constant voltage source
to
R
R
R
R
1
1
2
3
+ electronic control)
R
162
1363
278
2
Max.
–6.8
k
k
R
k
3
5
voltage variable range and notch
1 8 .
M
5
[mV]
Unit
=–9 V by R
[V]
OUT
V
V
(Expression C-4)
DD
5
.
R
2
pin to OPEN
is assumed:
Rev. 1.1a
DD
and V
5
5