Datasheet

1999 Apr 07 7
Philips Semiconductors Product specification
Remote 16-bit I/O expander for I
2
C-bus
PCF8575
Fig.4 Definition of START and STOP conditions.
handbook, full pagewidth
MBC622
SDA
SCL
P
STOP condition
SDA
SCL
S
START condition
Fig.5 System configuration.
MBA605
MASTER
TRANSMITTER /
RECEIVER
SLAVE
RECEIVER
SLAVE
TRANSMITTER /
RECEIVER
MASTER
TRANSMITTER
MASTER
TRANSMITTER /
RECEIVER
SDA
SCL
Fig.6 Acknowledgment on the I
2
C-bus.
handbook, full pagewidth
MGL539
S
START
condition
9821
clock pulse for
acknowledgement
not acknowledge
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
SCL FROM
MASTER
acknowledge