SED1565 Datasheet, PDF (25/87 Pages) Epson Company – Direct display of RAM data through the display data RAM

SED1565 Series
Liquid Crystal Drive Terminals
Pin Name I/O
Function
No. of
Pins
SEG0
to
SEG131
O These are the liquid crystal segment drive outputs. Through a combination 132
of the contents of the display RAM and with the FR signal, a single level is
selected from VDD, V2, V3, and V5.
RAM DATA FR
H
H
H
L
L
H
L
L
Power save —
Output Voltage
Normal Display Reverse Display
VDD
V2
V5
V3
V2
VDD
V3
V5
VDD
COM0
to
COMn
O These are the liquid crystal common drive outputs.
Part No.
COM
Part No.
SED1565*** COM 0 ~ COM 63 SED1565*** 64
SED1566*** COM 0 ~ COM 47 SED1566*** 48
SED1567*** COM 0 ~ COM 31 SED1567*** 32
SED1568*** COM 0 ~ COM 53 SED1568*** 54
SED1569*** COM 0 ~ COM 51 SED1569*** 52
Through a combination of the contents of the scan data and with the
FR signal, a single level is selected from VDD, V1, V4, and V5.
Scan Data FR Output Voltage
H
H
V5
H
L
VDD
L
H
V1
L
L
V4
Power Save —
VDD
COMS
O These are the COM output terminals for the indicator. Both terminals
2
output the same signal.
Leave these open if they are not used.
When in master/slave mode, the same signal is output by both master and
slave.
Test Terminals
Pin Name I/O
TEST0 to 4 I/O
TEST7 to 9
TEST5, 6
I
Function
These are terminals for IC chip testing.
They are set to OPEN.
These are terminals for IC chip testing.
They are set to VDD.
No. of
Pins
12
2
Total: 288 pins for the SED1565***.
272 pins for the SED1566***.
256 pins for the SED1567***.
EPSON
8–23