PCF8579 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

PCF8579

LCD column driver for dot matrix graphic displays

Philips Electronics 

Philips Semiconductors

LCD column driver for dot matrix graphic

displays

Product specification

PCF8579

R/W

slave address

acknowledge by

all addressed

PCF8578s / PCF8579s

S

S 0 1 1 1 1 0 A 0 AC

COMMAND

A

0

acknowledge

by A0, A1, A2 and A3

selected PCF8578s /

PCF8579s only

DISPLAY DATA

AP

1 byte

n 0 byte(s)

(a)

n 0 byte(s)

MSA830

update data pointers

and if necessary,

subaddress counter

acknowledge by

all addressed

PCF8578s / PCF8579s

slave address

S

S 0 1 1 1 1 0 A 0 AC

0

COMMAND

slave address

S

A S 011110A1A

0

R/W

n 1 byte

R/W

at this moment master

transmitter becomes a

master receiver and

PCF8578/PCF8579 slave

receiver becomes a

slave transmitter

(b)

acknowledge

from master

no acknowledge

from master

DATA

A

DATA

1P

n bytes

last byte

update data pointers

and if necessary

subaddress counter

MSA832

acknowledge by

all addressed

PCF8578s / PCF8579s

slave address

S

S 011110A1A

0

DATA

acknowledge

from master

no acknowledge

from master

A

DATA

1P

MSA831

R/W

n bytes

(c)

last byte

update data pointers

and if necessary,

subaddress counter

Fig.11 (a) Master transmits to slave receiver (WRITE mode); (b) Master reads after sending command string

(WRITE commands; READ data); (c) Master reads slave immediately after sending slave address (READ

mode).

1997 Apr 01

17

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