HD66520 Datasheet, PDF (15/45 Pages) Hitachi Semiconductor – 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM

HD66520T
Since the relationship between data bus pins DB0 to DB7 and the output pins are fixed, connect the data
from the CPU to data bus pins DB0 to DB7 according to the driver arrangement on the panel as shown in
Figure 10.
Drive Arrangement
When Y1 is placed on the left side of the liquid
crystal panel
HD66520
Y1
Y160
Liquid crystal
panel
Data Bus Connection
CPU data
D0
D1
D2
D3
D4
D5
D6
D7
HD66520 data
bus pin
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
When Y160 is placed on the left side of the
liquid crystal panel
HD66520
Y160
Y1
Liquid crystal
panel
CPU data
D0
D1
D2
D3
D4
D5
D6
D7
HD66520 data
bus pin
DB6
DB7
DB4
DB5
DB2
DB3
DB0
DB1
Figure 10 Relationship between Data Bus Pins DB0 to DB7 and Output Pins
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