BU9794AKV Datasheet, PDF (14/26 Pages) Rohm – Standard LCD Segment Driver

BU9794AKV MAX 200 Segments (SEG50×COM4)
●Example of display data
If LCD layout pattern is like as Figure 17, Figure 18, and display pattern is like as Figure 19.
Display data will be shown as follows;
COM0
COM1
COM2
COM3
Figure 17. Example of COM line pattern
SEG1 SEG3
SEG5 SEG7
SEG9
SEG2
SEG4 SEG6 SEG8
SEG10
Figure 18. Example SEG line pattern
Figure 19. Example Display pattern
<DDRAM data mapping of BU97940AKV display pattern>
SSS
EEE
GGG
012
COM0 D0 0 1 1
COM1 D1 0 0 1
COM2 D2 0 0 0
COM3 D3 0 0 1
Address
00h 01h 02h
SSSSSSSSSSSSSSSSS
EEEEEEEEEEEEEEEEE
GGGGGGGGGGGGGGGGG
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
01111001000000000
11001111000000000
10100101000000000
10001000000000000
03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h
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