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PCA9544APWR Datasheet(PDF) 2 Page - Texas Instruments

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Part # PCA9544APWR
Description  4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCA9544APWR Datasheet(HTML) 2 Page - Texas Instruments

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DGV, DW, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
1
20
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
SDA
SCL
INT
SC3
SD3
INT3
SC2
SD2
A1
A2
INT0
SD0
SC0
INT1
SD1
SC1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
A0
A1
A2
INT0
SD0
SC0
INT1
SD1
SC1
GND
VCC
SDA
SCL
INT
SC3
SD3
INT3
SC2
SD2
INT2
A0
GND
INT2
VCC
20
6
8 9 10
1
2
3
4
5
15
14
13
12
11
19
A2
INT0
SD0
SC0
INT1
INT
SC3
SD3
INT3
SC2
RGW PACKAGE
(TOP VIEW)
18 17 16
7
GQN OR ZQN PACKAGE
(TOP VIEW)
1
2
3
4
A
B
C
D
E
PCA9544A
4-CHANNEL I2C AND SMBus MULTIPLEXER
WITH INTERRUPT LOGIC
SCPS146A – OCTOBER 2005 – REVISED OCTOBER 2005
PIN DESCRIPTION
PIN NO.
NAME
FUNCTION
DGV, DW, PW,
RGW
AND RGY
1
19
A0
Address input 0
2
20
A1
Address input 1
3
1
A2
Address input 2
4
2
INT0
Active-low interrupt input 0
5
3
SD0
Serial data 0
6
4
SC0
Serial clock 0
7
5
INT1
Active-low interrupt input 1
8
6
SD1
Serial data 1
9
7
SC1
Serial clock 1
10
8
GND
Ground
11
9
INT2
Active-low interrupt input 2
12
10
SD2
Serial data 2
13
11
SC2
Serial clock 2
14
12
INT3
Active-low interrupt input 3
15
13
SD3
Serial data 3
16
14
SC3
Serial clock 3
17
15
INT
Active-low interrupt output
18
16
SCL
Serial clock line
19
17
SDA
Serial data line
20
18
VCC
Supply power
TERMINAL ASSIGNMENTS
1
2
3
4
A
A1
A0
VCC
SDA
B
INT0
INT
A2
SCL
C
SC0
SD0
SD3
SC3
D
SD1
SC2
INT1
INT3
E
GND
SC1
INT2
SD2
2



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