Specifications

5–8 EPSON
SED1225 Series
LCD Driver Signals
Dynamic drive pins
Note: As the same COMS1 signal is output at two pins, one of them must be used.
Static drive pins
Notes: We recommend to separate LCD panel electrodes of static drive pins from those of dynamic drive pins. If
these patterns are closely located, the LCD and its electrodes may be deteriorated.
Pin
I/O Description
No. of
Name Pins
COM1 to
O Common signal output pins (for character display) 24
COM24
COMS1,
O
Common signal output pins (for non-character display)
3
COMS2 COMS1, COMS2: Common outputs for symbol display
SEG1 to
O Segment signal output pins (for character display) 60
SEG60
SEGS1, 2
O
Segment signal output pins (for non-character display)
4
4, 5 SEGS1, 2, 4, 5: Segment outputs for signal output
Pin
I/O Description
No. of
Name Pins
COMSA O Common signal output pin (for icon display) 1
SEGSA, B
C, D, E, F O Segment signal output pin (for icon display) 10
G, H, I, J