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PCF8575CDW Datasheet(PDF) 15 Page - Texas Instruments

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Part # PCF8575CDW
Description  SMBus Low-Power I/O Expander
PDF  38 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCF8575CDW Datasheet(HTML) 15 Page - Texas Instruments

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A
A
S
0
1
0
0
A1
A2
A0
0
Start
Condition
ACK
From Slave
ACK
From Slave
Data
Data
Slave Address
R/W
P7
P6
1
P0
P7
P0
A
Integral Multiples of Two Bytes
P5
tpv
IOHT
tir
SCL
SDA
Write to
Port
Data Output
Voltage
P5 Output
Voltage
P5 Pullup
Output
Current
INT
ACK
From Slave
Data A0
and B0
Valid
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
IOH
PCF8575C
www.ti.com
SCPS123F – MARCH 2005 – REVISED JANUARY 2015
8.3.3 Address Reference
INPUTS
I2C BUS SLAVE
I2C BUS SLAVE
8-BIT READ
8-BIT WRITE
A2
A1
A0
ADDRESS
ADDRESS
L
L
L
65 (decimal), 41
64 (decimal), 40
(hexadecimal)
(hexadecimal)
L
L
H
67 (decimal), 43
66 (decimal), 42
(hexadecimal)
(hexadecimal)
L
H
L
69 (decimal), 45
68 (decimal), 44
(hexadecimal)
(hexadecimal)
L
H
H
71 (decimal), 47
70 (decimal), 46
(hexadecimal)
(hexadecimal)
H
L
L
73 (decimal), 49
72 (decimal), 48
(hexadecimal)
(hexadecimal)
H
L
H
75 (decimal), 4B
74 (decimal), 4A
(hexadecimal)
(hexadecimal)
H
H
L
77 (decimal), 4D
76 (decimal), 4C
(hexadecimal)
(hexadecimal)
H
H
H
79 (decimal), 4F
78 (decimal), 4E
(hexadecimal)
(hexadecimal)
8.4 Device Functional Modes
Figure 13 and Figure 14 show the address and timing diagrams for the write and read modes, respectively.
Figure 13. Write Mode (Output)
Copyright © 2005–2015, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: PCF8575C



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