HD66520 Datasheet, PDF (20/45 Pages) Hitachi Semiconductor – 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM

CPU
D0
DB0
D1
DB1
D2
DB2
D3
DB3
D4
DB4
D5
DB5
D6
DB6
D7
DB7
HD66520
HD66520
HD66520T
11000000
11000000
11000000
11111100
01101 010
01101 010
01101 010
01010 110
Display
memory
1111000011000000
1100110011000000
1100110011000000
1111000011111100
01 01101001 101010
01 10011001 101010
01 10011001 101010
01 01101001 010110
Display
memory
11110000
11001100
11001100
11110000
01 011010
01 100110
01 100110
01 011010
Y1 Y2 Y3 Y4
Y157 Y159 Y1 Y2 Y3 Y4
Y158 Y160
Y157 Y159
Y158 Y160
Liquid crystal
display image
Figure 15 Quarter VGA Size (2)
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