S6A0074 Datasheet, PDF (10/68 Pages) Samsung semiconductor – 34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A0074
34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
DISPLAY DATA RAM (DDRAM)
DDRAM stores display data of maximum 80 x 8 bits (80 characters). DDRAM address is set in the address
counter (AC) as a hexadecimal number. (refer to Figure 1.)
MSB
AC6 AC5
AC4
AC3
AC2
AC1
LSB
AC0
Figure 1. DDRAM Address
Display of 5-dot Font Width Character
5-dot 1-line Display
In case of 1-line display with 5-dot font, the address range of DDRAM is 00H-4FH (Refer to Figure 2).
Display Position
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
COM1
COM8
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C 1D 1E
1F
COM9
COM16
SEG1
S6A0074
SEG80 SEG1
DDRAM Address
SEG80
S6A0074
COM1
COM8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 ^COM9
COM16
(After Shift Left)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
COM1
COM8
4F 00 01
02 03
04
05 06
07 08 09 0A 0B 0C 0D 0E
0F 10 11
12 13 14
15
16
17
18
19
1A
1B
1C 1D 1E
COM9
COM16
(After Shift Right)
Figure 2. 1-line X 32 ch. Display
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