Table of Contents
Advertisement
6. PIN DESCRIPTIONS
Power Supply Pins
Pin Name
I/O
V
Power
DD
Supply
V
Power
SS
Supply
V
Power
SS2
Supply
V
Power
RS
Supply
V
, V
,
Power
1
2
V
, V
,
Supply
3
4
V
5
LCD Power Supply Circuit Terminals
Pin Name
I/O
CAP1+
O
CAP1–
O
CAP2+
O
CAP2–
O
CAP3–
O
V
O
OUT
V
I
R
Rev.2.1
Shared with the MPU power supply terminal V
This is a 0V terminal connected to the system GND.
This is the reference power supply for the step-up voltage circuit for the
liquid crystal drive.
This is the externally-input V
voltage regulator.
These are only enabled for the models with the V
This is a multi-level power supply for the liquid crystal drive. The voltage
applied is determined by the liquid crystal cell, and is changed through the
use of a resistive voltage divided or through changing the impedance using
an op. amp. Voltage levels are determined based on V
maintain the relative magnitudes shown below.
) ≥ V
≥ V
V
(= V
DD
0
1
2
Master operation: When the power supply turns ON, the internal power
supply circuits produce the V
settings are selected using the LCD bias set command.
S1D10605
S1D10606
*****
V
1/9•V
1/7•V
1/8•V
1
5
5
V
2/9•V
2/7•V
2/8•V
2
5
5
V
7/9•V
5/7•V
6/8•V
3
5
5
V
8/9•V
6/7•V
7/8•V
4
5
5
DC/DC voltage converter. Connect a capacitor between this terminal and
the CAP1– terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and
the CAP1+ terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and
the CAP2– terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and
the CAP2+ terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and
the CAP1+ terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and
V
.
SS
Output voltage regulator terminal. Provides the voltage between V
V
through a resistive voltage divider.
5
These are only enabled when the V
not used (IRS = LOW).
These cannot be used when the V
used (IRS = HIGH).
Function
power supply for the LCD power supply
REG
≥ V
≥ V
≥ V
3
4
5
to V
voltages shown below. The voltage
1
4
S1D10607
*****
*****
1/6•V
1/6•V
1/5•V
5
5
5
5
2/6•V
2/6•V
2/5•V
5
5
5
5
4/6•V
4/6•V
3/5•V
5
5
5
5
5/6•V
5/6•V
4/5•V
5
5
5
5
Function
voltage regulator internal resistors are
5
voltage regulator internal resistors are
5
EPSON
S1D10605 Series
.
CC
external input option.
REG
, and must
DD
S1D10608
S1D10609
*****
1/8•V
1/6•V
1/8•V
5
5
5
2/8•V
2/6•V
2/8•V
5
5
5
6/8•V
4/6•V
6/8•V
5
5
5
7/8•V
5/6•V
7/6•V
5
5
5
DD
No. of
Pins
13
9
4
2
10
*****
1/6•V
5
2/6•V
5
4/6•V
5
5/6•V
5
No. of
Pins
2
2
2
2
2
2
and
2
11
Advertisement
Table of Contents
