PCF8579 Philips Semiconductors, PCF8579 Datasheet - Page 13

• Manufacturer Part Number: PCF8579
• Description: LCD column driver for dot matrix graphic displays
• Manufacturer: Philips Semiconductors

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4 bytes
2 bytes
4 bytes
1 byte
RAM
0
0
1
0
1
2
3
1
2
3
4
5
6 10 14 18 22 26 30 34 38 42 46
7 11 15 19 23 27 31 35 39 43 47
RAM data bytes are
2
4
5
8 12 16 20 24 28 32 36 40 44
9 13 17 21 25 29 33 37 41 45
written or read as
indicated above
3
6
7
PCF8579
driver 1
40-bits
4 5
8 10 12 14 16 18 20 22
9 11 13 15 17 19 21 23
6
7
8
9 10 11
PCF8579
Fig.8 RAM access mode.
driver 2
PCF8579 system RAM
1
k
half-graphic mode
full-graphic mode
16
character mode
PCF8579
driver k
MSA921
bank 0
bank 1
bank 2
bank 3
MSB
LSB