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PCA9555PWG4 Datasheet(PDF) 4 Page - Texas Instruments

Part # PCA9555PWG4
Description  SMBus I/O Expander With Interrupt Output
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCA9555PWG4 Datasheet(HTML) 4 Page - Texas Instruments

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DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
INT
A1
A2
P00
P01
P02
P03
P04
P05
P06
P07
GND
VCC
SDA
SCL
A0
P17
P16
P15
P14
P13
P12
P11
P10
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
24 23 22 21 20
7
8
9 10 11
1
2
3
4
5
6
18
17
16
15
14
13
RGE PACKAGE
(TOP VIEW)
19
12
P00
P01
P02
P03
P04
P05
A0
P17
P16
P15
P14
P13
PCA9555
SCPS131F – AUGUST 2005 – REVISED JUNE 2014
www.ti.com
5 Pin Configuration and Functions
Pin Functions
PIN
SOIC (D),
SSOP (DB),
DESCRIPTION
NAME
QSOP (DBQ),
QFN (RGE)
TSSOP (PW), AND
TVSOP (DGV)
INT
1
22
Interrupt output. Connect to VCC through a pullup resistor.
A1
2
23
Address input 1. Connect directly to VCC or ground.
A2
3
24
Address input 2. Connect directly to VCC or ground.
P00
4
1
P-port input/output. Push-pull design structure.
P01
5
2
P-port input/output. Push-pull design structure.
P02
6
3
P-port input/output. Push-pull design structure.
P03
7
4
P-port input/output. Push-pull design structure.
P04
8
5
P-port input/output. Push-pull design structure.
P05
9
6
P-port input/output. Push-pull design structure.
P06
10
7
P-port input/output. Push-pull design structure.
P07
11
8
P-port input/output. Push-pull design structure.
GND
12
9
Ground
P10
13
10
P-port input/output. Push-pull design structure.
P11
14
11
P-port input/output. Push-pull design structure.
P12
15
12
P-port input/output. Push-pull design structure.
P13
16
13
P-port input/output. Push-pull design structure.
P14
17
14
P-port input/output. Push-pull design structure.
P15
18
15
P-port input/output. Push-pull design structure.
P16
19
16
P-port input/output. Push-pull design structure.
P17
20
17
P-port input/output. Push-pull design structure.
A0
21
18
Address input 0. Connect directly to VCC or ground.
SCL
22
19
Serial clock bus. Connect to VCC through a pullup resistor.
SDA
23
20
Serial data bus. Connect to VCC through a pullup resistor.
VCC
24
21
Supply voltage
4
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Copyright © 2005–2014, Texas Instruments Incorporated
Product Folder Links: PCA9555


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