PCF8579H データシートの表示（PDF） - Philips Electronics

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PCF8579H

LCD column driver for dot matrix graphic displays

Philips Electronics 

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PCF8579

driver 1

PCF8579

driver 2

PCF8579

driver k

RAM

4 bytes

40-bits

1 byte 0 1 2 3 4 5 6 7 8 9 10 11

2 bytes

0 2 4 6 8 10 12 14 16 18 20 22

1 3 5 7 9 11 13 15 17 19 21 23

PCF8579 system RAM

1 k 16

character mode

half-graphic mode

bank 0

bank 1

bank 2

bank 3

LSB

MSB

0 4 8 12 16 20 24 28 32 36 40 44

4 bytes

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

Fig.8 RAM access mode.

MSA921

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