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UPD7228 Datasheet(PDF) 17 Page - NEC

Part # UPD7228
Description  1/8, 1/16 DUTY LCD CONTROLLER/DRIVER
PDF  39 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD7228 Datasheet(HTML) 17 Page - NEC

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Data Sheet S10299EJ4V0DS00
17
µµµµ PD16434
(2) 16-time-division (single-chip configuration)
Bank 0 and bank 1 are used in a pair, and the contents are read out to the column driver as 42
× 16-bit display
data.
Figure 2–7 shows correspondence of bits for the row driver and column driver for the data memory. If the data
located at the Rn and Cm intersection is 1, the corresponding LCD dot is ON. If the data is 0, the dot is OFF.
Figure 2–7. Data Memory (16-Time-Division, Single-Chip)
R8
R9
R10
R11
R12
R13
R14
R15
C41
C40
C1
C0
0
1
2
3
4
5
6
7
Corresponding
row signal
R0
R1
R2
R3
R4
R5
R6
R7
29H
28H
01H
00H
bit 0
1
2
3
4
5
6
7
To colmn driver
Bank 0
Bank 1



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