S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 562

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

LCD driver pins
Test pins
Note and caution
Rev. 1.1a
Pin name
RD
(E)
WR
(R/W)
C86
P/S
CL
SEG0 to
SEG131
COM0 to
COM63
COMS
TEST0 to
TEST13
Name
Name
• If control signal from MPU is HZ, an over-current may flow through the IC. A protection is required to prevent
the HZ signal at the input pins.
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
In serial mode, no data can be read from DDRAM.
• When connected to an 8080-series MPU ;
This is active-LOW. This pin is connected to the RD signal of the
8080-series MPU. While this signal is low, SED15B1 series data
bus is an output status.
• When connected to an 6800-series MPU ;
This is active-HIGH. This is used as an enable clock input pin of the
6800-series MPU.
• When connected to an 8080-series MPU ;
This is active-LOW. This pin is connected to the WR signal of the
8080-series MPU. The signals on the data bus are latched at the
rising edge of the WR signal.
•When connected to an 6800-series MPU ;
This is the read/write control signal input .
MPU interface selection pin.
Serial data input/parallel data input selection pin.
The following applies depending on the P/S status :
When P/S=LOW,D5 to D0 are HZ. D5 to D0 may be HIGH, LOW or
Open, and moreover A0, RD, WR, C86 may be HIGH, LOW or
Open.
External clock input. When external clock is halted, CL must be LOW.
If internal clock (on-chip CR oscillation circuit) is selected, CL
connected to V
LCD segment driver output.
LCD common driver output.
LCD common driver output for the indicator. When it is not used,
it is made open.
These are terminals for IC chip testing.
TEST1 to TEST4 are recommended to connect to V
HIGH
R/W=HIGH : Read.
R/W=LOW : Write.
C86=HIGH : 6800-series MPU interface
C86=LOW : 8080-series MPU interface
P/S=HIGH : Parallel data input
P/S=LOW : Serial data input
LOW
P/S
Data/Command
DD
Description
Description
Description
A0
A0
.
EPSON
D7 to D0
SI (D7)
Data
Read/Write
Write only
RD, WR
DD
or V
SS
.The others set to open.
Serial Clock
SCL (D6)
S1D15B01 Series
Number of
Number of
Number of
pins
pins
pins
132
64
14
1
1
2
1
1
1
13–7