SSD1801AV ETC [List of Unclassifed Manufacturers], SSD1801AV Datasheet - Page 16

• Manufacturer Part Number: SSD1801AV
• Description: LCD Segment / Common Driver with Controller for Character Display System
• Manufacturer: ETC [List of Unclassifed Manufacturers]

COM0 – COM7
COM8 – COM15
Hidden Line
Hidden Line
COM0 – COM7
COM8 – COM15
COM16 – COM23
Hidden Line
Display Data RAM (DDRAM)
DDRAM stores display data of maximum 64 x 8 bits (Max 64 characters). DDRAM address is set in the address
counter as a hexadecimal number.
SEGMENT ICON RAM (ICONRAM)
ICONRAM has segment control data and segment pattern data. There are 2 ICONS pins (COMI0 & COMI1), which
has the same signal. So the icons on the same SEG are displayed at the same time. The number of icons is 80.
Character Generator ROM (CGROM)
CGROM has 5 x 8 dot 256 characters. The Function Set instruction selects the 8 characters (00h - 07h) of CGROM
or CGRAM.
15
SSD1801 Series
Note: “-“: Don’t care.
ICONRAM address
SEG 0
SEG 0
1
1
Table 4 - Relationship between ICONRAM Address and Display Pattern
st
00
10
20
30
st
00
10
20
30
0Dh
0Eh
0Fh
00h
01h
02h
Ch
Ch
…
Rev 1.1
01/2003
01
11
22
33
01
11
22
33
02
12
22
32
02
12
22
32
03
13
23
33
03
13
23
33
ICONRAM bits
D7
…
-
-
-
-
-
-
04
14
24
34
04
14
24
34
(1) 2 line mode DDRAM Address
(2) 3 line mode DDRAM Address
Figure 9 - DDRAM Address
05
15
25
35
05
15
25
35
D6
…
-
-
-
-
-
-
06
16
26
36
06
16
26
36
07
17
27
37
07
17
27
37
D5
…
-
-
-
-
-
-
08
18
28
38
08
18
28
38
S10
S65
S70
S75
D4
S0
S5
…
09
19
29
39
09
19
29
39
0A
1A
2A
3A
0A
1A
2A
3A
S11
S66
S71
S76
D3
S1
S6
…
0B
1B
2B
3B
0B
1B
2B
3B
0C
1C
2C
3C
0C
1C
2C
3C
S12
S67
S72
S77
D2
S2
S7
…
0D
1D
2D
3D
0D
1D
2D
3D
0E
1E
2E
3E
0E
1E
2E
3E
S13
S68
S73
S78
D1
S3
S8
…
16
16
SEG 79
SEG 79
th
0F
1F
2F
3F
th
0F
1F
2F
3F
Ch
Ch
S14
S69
S74
S79
D0
SOLOMON
S4
S9
…