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PCA9544A Datasheet(PDF) 3 Page - NXP Semiconductors

Part # PCA9544A
Description  4-channel IC multiplexer with interrupt logic
PDF  18 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9544A Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product data sheet
PCA9544A
4-channel I2C multiplexer with interrupt logic
2004 Sep 29
3
PIN CONFIGURATION — SO, TSSOP
A0
A1
A2
INT0
SD1
VDD
SDA
SCL
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
SD0
SC0
INT1
INT
SC3
SD3
INT3
SC2
9
12
10
11
SC1
VSS
SD2
INT2
SW00373
Figure 1. Pin configuration — SO, TSSOP
PIN CONFIGURATION — HVQFN
15
14
13
12
11
1
2
3
4
5
su01666
TOP VIEW
A2
INT0
SD0
SC0
INT1
SD1 SC1 VSS INT2 SD2
SC2
SC3
INT
INT3
SD3
SCL
SDA
VDD
A0
A1
Figure 2. Pin configuration — HVQFN
PIN DESCRIPTION
SO, TSSOP
PIN NUMBER
HVQFN
PIN NUMBER
SYMBOL
FUNCTION
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
VSS
Supply 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
VDD
Supply voltage



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