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PCF8575 Datasheet(PDF) 3 Page - Texas Instruments

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Part # PCF8575
Description  REMOTE 16-BIT I2C AND SMBus I/O EXPANDERWITH INTERRUPT OUTPUT
PDF  32 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCF8575 Datasheet(HTML) 3 Page - Texas Instruments

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PCF8575
REMOTE 16-BIT I2C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT
SCPS121D – JANUARY 2005 – REVISED APRIL 2007
TERMINAL FUNCTIONS
NO.
NAME
FUNCTION
DB, DBQ, DGV,
RGE
DW, AND PW
1
22
INT
Interrupt output. Connect to VCC through a pullup resistor.
2
23
A1
Address input 1. Connect directly to VCC or ground. Pullup resistors are not needed.
3
24
A2
Address input 2. Connect directly to VCC or ground. Pullup resistors are not needed.
4
1
P00
P-port input/output. Push-pull design structure.
5
2
P01
P-port input/output. Push-pull design structure.
6
3
P02
P-port input/output. Push-pull design structure.
7
4
P03
P-port input/output. Push-pull design structure.
8
5
P04
P-port input/output. Push-pull design structure.
9
6
P05
P-port input/output. Push-pull design structure.
10
7
P06
P-port input/output. Push-pull design structure.
11
8
P07
P-port input/output. Push-pull design structure.
12
9
GND
Ground
13
10
P10
P-port input/output. Push-pull design structure.
14
11
P11
P-port input/output. Push-pull design structure.
15
12
P12
P-port input/output. Push-pull design structure.
16
13
P13
P-port input/output. Push-pull design structure.
17
14
P14
P-port input/output. Push-pull design structure.
18
15
P15
P-port input/output. Push-pull design structure.
19
16
P16
P-port input/output. Push-pull design structure.
20
17
P17
P-port input/output. Push-pull design structure.
21
18
A0
Address input 0. Connect directly to VCC or ground. Pullup resistors are not needed.
22
19
SCL
Serial clock line. Connect to VCC through a pullup resistor
23
20
SDA
Serial data line. Connect to VCC through a pullup resistor.
24
21
VCC
Supply voltage
3
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