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PCF8575CDGVR Datasheet(PDF) 9 Page - Texas Instruments

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Part # PCF8575CDGVR
Description  SMBus Low-Power I/O Expander
Download  38 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCF8575CDGVR Datasheet(HTML) 9 Page - Texas Instruments

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background image
A
A
A
A
S
0
1
0
0
A1
A2
A0 1
Data 1
1
P
Data 3
Start
Condition
16 Bits
(2 Data Bytes)
From Port
Data From Port
Slave Address (PCF8575)
R/W
8
7
6
5
4
3
2
1
tir
tir
tsps
tiv
Address
Data 1
Data 3
INT
Data
Into
Port
B
B
A
A
Pn
INT
R/W
A
tir
0.7 × VCC
0.3 × VCC
0.7 × VCC
0.3 × VCC
0.7 × VCC
0.3 × VCC
0.7 × VCC
0.3 × VCC
INT
SCL
View B−B
View A−A
tiv
RL = 4.7 k
VCC
CL = 100 pF
INTERRUPT LOAD CONFIGURATION
DUT
INT
ACK
From Slave
ACK
From Slave
Data 2
Data 2
PCF8575C
www.ti.com
SCPS123F – MARCH 2005 – REVISED JANUARY 2015
Parameter Measurement Information (continued)
Figure 8. Interrupt Load Circuit and Voltage Waveforms
Copyright © 2005–2015, Texas Instruments Incorporated
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Product Folder Links: PCF8575C


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