pca9545ad NXP Semiconductors, pca9545ad Datasheet - Page 5

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pca9545ad

Manufacturer Part Number
pca9545ad
Description
4-channel I2c Switch With Interrupt Logic And Reset
Manufacturer
NXP Semiconductors
Datasheet

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NXP Semiconductors
PCA9545A_45B_45C_6
Product data sheet
5.2 Pin description
Table 3.
[1]
Symbol
A0
A1
RESET
INT0
SD0
SC0
INT1
SD1
SC1
V
INT2
SD2
SC2
INT3
SD3
SC3
INT
SCL
SDA
V
SS
DD
HVQFN package die supply ground is connected to both the V
pin must be 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. 06 — 19 March 2007
4-channel I
HVQFN20
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
[1]
2
Description
address input 0
address input 1
active LOW reset input
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
C-bus switch with interrupt logic and reset
PCA9545A/45B/45C
SS
pin and the exposed center pad. The V
© NXP B.V. 2007. All rights reserved.
5 of 28
SS

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