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PCF8575 View Datasheet(PDF) - NXP Semiconductors.
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Description
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PCF8575
Remote 16-bit I/O expander for I2C-bus
NXP Semiconductors.
PCF8575 Datasheet PDF : 24 Pages
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Philips Semiconductors
Remote 16-bit I/O expander for I
2
C-bus
4 BLOCK DIAGRAM
Product speciļ¬cation
PCF8575
handbook, full pagewidth
1
INT
A0
21
2
A1
A2
3
22
SCL
23
SDA
INTERRUPT
LOGIC
PCF8575
LP FILTER
INPUT
FILTER
I
2
C-BUS
CONTROL
SHIFT
16 BITS
REGISTER
I/O
PORT
P00 to P07
4 to 11
P10 to P17
13 to 20
VDD
24
VSS
12
POWER-ON
RESET
WRITE pulse
READ pulse
MGL537
Fig.1 Block diagram.
1999 Apr 07
4
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