PCF8578 데이터 시트보기 (PDF) - Philips Electronics

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PCF8578

LCD row/column driver for dot matrix graphic displays

Philips Electronics 

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RAM ACCESS:

character mode

bank 1

DEVICE SELECT:

subaddress 12

RAM

bank 0

bank 1

bank 2

bank 3

LOAD X-ADDRESS: X-address = 8

R/W

slave address

R/W

slave address

DEVICE SELECT

LOAD X-ADDRESS

READ

S

S 011110A1A

DATA

A

0

RAM ACCESS

S

S 0 1 1 1 1 0A0 A1 1 1 0 1 1 0 0A1 0 0 0 1 0 0 0A0 1 1 1 0 0 0 1A

0

last command

WRITE

DATA

A

DATA

A

MSA835

Fig.11 Example of commands specifying initial data byte RAM locations.

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