S1D15715 Epson Electronics America, Inc., S1D15715 Datasheet - Page 18

• Manufacturer Part Number: S1D15715
• Description: Liquid Crystal Display =lcd Driver
• Manufacturer: Epson Electronics America, Inc.

S1D15715 Series Technical Manual
5.4 LCD driver pins
5.5 Test pins
Note and caution
• In case the control signal being transmit from the MPU is at a high impedance, excess current may occur in
12
to SED101
to COM31)
to COM15
Pin name
Pin name
to COM7)
TEST0 to
TEST10
(COM0
(COM0
the inside of the IC.
COMS
COM0
SEG0
Take measures to prevent the input pin from switching to the high impedance status.
CL
I/O
I/O
O
O
O
I
I
This pin is used for enabling or disabling the built-in oscillation circuit for the
display clock.
When inputting external clock, input clock to the CL pin.
When using the built-in oscillation circuit, select CL=HIGH (V
These pins output the signal for the segment drive of LCD.
One of V
of display RAM data and internal FR signal.
These pins output the signal for the common drive of LCD.
They are branched by the SEL pins as follows.
One of V
of scan data and FR signal.
In case multiple number of the COM pins for the same signal names exist, the
same signal will be output from all the pins.
They are COM pins exclusively used for the indicator.
The same signal will be output from all the 4 pins.
They must be made open when not used.
These are terminals for IC chip testing. They are set to OPEN.
CL=HIGH : Built-in oscillation circuit is enabled.
CL=LOW : Built-in oscillation circuit (external input) is disabled.
0
0
S1D15715
S1D15716
S1D15717
, V
, V
Power save
RAM data
Model
2
Power save
1
Scan data
, V
HIGH
HIGH
LOW
LOW
, V
HIGH
HIGH
LOW
LOW
3
4
and V
and V
SS
COM0 to COM15
COM0 to COM31
SS
COM0 to COM7
levels is selected depending on a given combination
Internal FR
levels is selected depending on a given combination
signal
HIGH
HIGH
LOW
LOW
COM
-
EPSON
Description
Description
HIGH
HIGH
LOW
LOW
FR
-
Normal
display
V
V
V
V
Output voltage
SS
0
2
3
Output voltage
V
SS
Reversing
V
V
V
V
V
display
SS
SS
DD
0
1
4
V
V
V
V
).
SS
2
3
0
Total: 212 pins
Number of
Number of
pins
pins
(16)
102
Rev.1.0
32
11
1
4