PCA9544AD,112 NXP Semiconductors, PCA9544AD,112 Datasheet - Page 5

• Manufacturer Part Number: PCA9544AD,112
• Description: IC I2C MUX 4CH 20SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9544AD,112

• Applications: 4-Channel I²C Multiplexer
• Interface: I²C
• Voltage - Supply: 2.3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Package / Case: 20-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935275899112; PCA9544AD; PCA9544AD

NXP Semiconductors
PCA9544A_4
Product data sheet
5.2 Pin description
Table 3.
[1]
Symbol
A0
A1
A2
INT0
SD0
SC0
INT1
SD1
SC1
V
INT2
SD2
SC2
INT3
SD3
SC3
INT
SCL
SDA
V
SS
DD
HVQFN20 package supply ground is connected to both V
connected to supply ground for proper device operation. For enhanced thermal, electrical, and board level
performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad on the
board and for proper heat conduction through the board, thermal vias need to be incorporated in the PCB in
the thermal pad region.
Pin description
Pin
SO20, TSSOP20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Rev. 04 — 15 June 2009
HVQFN20
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
[1]
4-channel I
Description
address input 0
address input 1
address input 2
active LOW interrupt input 0
serial data 0
serial clock 0
active LOW interrupt input 1
serial data 1
serial clock 1
supply ground
active LOW interrupt input 2
serial data 2
serial clock 2
active LOW interrupt input 3
serial data 3
serial clock 3
active LOW interrupt output
serial clock line
serial data line
supply voltage
2
C-bus multiplexer with interrupt logic
SS
pin and exposed center pad. V
PCA9544A
© NXP B.V. 2009. All rights reserved.
SS
pin must be
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