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PCF8574ADGVR Datasheet(PDF) 8 Page - Texas Instruments

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Part # PCF8574ADGVR
Description  REMOTE 8BIT I/O EXPANDER FOR I2C BUS
PDF  16 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCF8574ADGVR Datasheet(HTML) 8 Page - Texas Instruments

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PCF8574
REMOTE 8BIT I/O EXPANDER FOR I2C BUS
SCPS068C - JULY 2001 − REVISED JANUARY 2004
8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
A
A
A
A
S0
1
0
0
A1
A2
A0 1
Data 1
1P
Data 3
Start
Condition
Acknowledge
From Slave
Acknowledge
From Slave
Data From Port
Data From Port
Slave Address (PCF8574)
R/W
8
7
6
5
4
3
2
1
tir
tir
tsps
tiv
Data 1
Data 2
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
Figure 2. Interrupt-Timing Waveforms



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