Specifications

5–22 EPSON
SED1225 Series
Symbol Register
The SED1225 has a built-in Symbol register to allow
separate symbol setup on the display panel.
The Symbol register has the 120-bit storage capacity, and
it can display 120 symbols. Also, the SED1225 contains
a Blink register for every 5-dot blinking.
The following provides the relationship between the
Symbol register display patterns, RAM addresses and
write data.
Note: If the symbol size is 1.5 times greater than other dots, we recommend to divide and drive the SEG* and
COMS1 and COMS2 separately.
12 1313
56
60
60
15
22 5345
SEG1SEGS1
COMS1
COMS2
SEGS4SEG56
61 65 116 120
1
RAM Address
Corresponding symbol bits
60H to 6BH
D7 D6 D5 D4 D3 D2 D1 D0
0
1
B
1BL1
BL2
BL12
BL13
BL14
BL24
6
56
2
7
57
3
8
58
45
910
59 60
70H to 7BH
0
1
B
61
66
116
62
67
117
63 65
68 70
118 120
64
69
119
BL1 to BL24: Blinking setup (0 for no blinking; 1 for blinking)
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✽✽
✽✽
✽✽
✽✽
✽✽
✽✽