2003 Apr 14 16
Philips Semiconductors Product specification
LCD row/column driver for
dot matrix graphic displays
PCF8578
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MSA849
01234567891011
0
246810121416182022
1357911131517192123
0
4 8 12 16 20 24 28 32 36 40 44
1 5 9 13 17 21 25 29 33 37 41 45
2 6 10 14 18 22 26 30 34 38 42 46
3 7 11 15 19 23 27 31 35 39 43 47
RAM data bytes are
written or read as
indicated above
full-graphic mode
LSB
MSB
bank 0
bank 1
bank 2
bank 3
PCF8578/PCF8579 system RAM
1 k 16
half-graphic mode
character mode
1 byte
4 bytes
RAM
2 bytes
4 bytes
40-bits
driver 1
driver 2 driver k
PCF8578/PCF8579 PCF8579
Fig.10 RAM ACCESS mode.
