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Lista de partido
PCF8575
Remote 16-bit I/O expander for I2C-bus
Philips Electronics
PCF8575 Datasheet PDF : 24 Pages
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Philips Semiconductors
Remote 16-bit I/O expander for I
2
C-bus
Product specification
PCF8575
handbook, full pagewidth
SDA
SCL
S
START condition
SDA
SCL
P
STOP condition
MBC622
Fig.4 Definition of START and STOP conditions.
SDA
SCL
MASTER
TRANSMITTER /
RECEIVER
SLAVE
RECEIVER
SLAVE
TRANSMITTER /
RECEIVER
MASTER
TRANSMITTER
MASTER
TRANSMITTER /
RECEIVER
MBA605
Fig.5 System configuration.
handbook, full pagewidth
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
not acknowledge
acknowledge
SCL FROM
MASTER
S
1
2
START
condition
8
9
clock pulse for
acknowledgement
MGL539
Fig.6 Acknowledgment on the I
2
C-bus.
1999 Apr 07
7
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