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| PCA9540B Datasheet, PDF (3/22 Pages) NXP Semiconductors – 2-channel I2C-bus multiplexer | |||
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NXP Semiconductors
5. Pinning information
5.1 Pinning
PCA9540B
2-channel I2C-bus multiplexer
SCL 1
8 SC1
SDA 2
7 SD1
PCA9540BD
VDD 3
6 VSS
SD0 4
5 SC0
002aae713
Fig 2. Pin conï¬guration for SO8
SCL 1
SDA 2
VDD 3
SD0 4
PCA9540BDP
8 SC1
7 SD1
6 VSS
5 SC0
002aae714
Fig 3. Pin conï¬guration for TSSOP8
SCL 1
8 SC1
SDA 2
VDD 3
PCA9540BGD
7 SD1
6 VSS
SD0 4
5 SC0
002aae753
Transparent top view
Fig 4. Pin conï¬guration for XSON8U
5.2 Pin description
Table 2.
Symbol
SCL
SDA
VDD
SD0
SC0
VSS
SD1
SC1
Pin description
Pin
1
2
3
4
5
6
7
8
Description
serial clock line
serial data line
supply voltage
serial data 0
serial clock 0
supply ground
serial data 1
serial clock 1
PCA9540B_4
Product data sheet
Rev. 04 â 3 September 2009
© NXP B.V. 2009. All rights reserved.
3 of 22
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