Datasheet

1999 Apr 07 9 Philips Semiconductors Product specification
Remote 16-bit I/O expander for I
2
C-bus
PCF8575
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MGL542
handbook, full pagewidth
S 0 1 0 0 A2 A1 A0 0 A P07 P06 P00 P17 P101
start condition
R/W
P05
acknowledge
from slave
A ASDA
SCL
Integral multiples of two bytes
WRITE TO
PORT
t
pv
I
OHt
DATA OUTPUT
FROM PORT
P05 OUTPUT
VOLTAGE
P05 PULL-UP
OUTPUT CURRENT
INT
slave address (PCF8575)
data to port 0 data to port 1
12345678
I
OH
acknowledge
from slave
acknowledge
from slave
t
ir
Data A0 and
B0 valid
Fig.9 WRITE mode (output).