PCA9509(2009) 查看數據表（PDF） - NXP Semiconductors.
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PCA9509 Datasheet PDF : 19 Pages
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NXP Semiconductors
5. Pinning information
5.1 Pinning
PCA9509
Level translating I2C-bus/SMBus repeater
VCC(A) 1
A1 2
A2 3
GND 4
PCA9509DP
8 VCC(B)
7 B1
6 B2
5 EN
002aac126
Fig 2. Pin configuration for TSSOP8
VCC(A) 1
A1 2
A2 3
GND 4
8 VCC(B)
7 B1
PCA9509D
6 B2
5 EN
002aac127
Fig 3. Pin configuration for SO8
terminal 1
index area
VCC(A) 1
7 B1
PCA9509GM
A1 2
6 B2
A2 3
5 EN
002aac776
Transparent top view
Fig 4. Pin configuration for XQFN8
5.2 Pin description
Table 2.
Symbol
VCC(A)
A1[1]
A2[1]
GND
EN
B2[1]
B1[1]
VCC(B)
Pin description
Pin
1
2
3
4
5
6
7
8
Description
port A power supply
port A (lower voltage side)
port A (lower voltage side)
ground (0 V)
enable input (active HIGH)
port B (SMBus/I2C-bus side)
port B (SMBus/I2C-bus side)
port B power supply
[1] Port A and port B can be used for either SCL or SDA.
PCA9509_5
Product data sheet
Rev. 05 — 10 July 2009
© NXP B.V. 2009. All rights reserved.
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