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PCA9306DC1 Datasheet(PDF) 9 Page - NXP Semiconductors

Part # PCA9306DC1
Description  Dual bidirectional I2C-bus and SMBus voltage-level translator
PDF  21 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9306DC1 Datasheet(HTML) 9 Page - NXP Semiconductors

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PCA9306_2
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 21 February 2007
9 of 21
NXP Semiconductors
PCA9306
Dual bidirectional I2C-bus and SMBus voltage-level translator
11. Application information
(1) The applied voltages at Vref(1) and Vpu(D) should be such that Vbias(ref)(2) is at least 1 V higher
than Vref(1) for best translator operation.
Fig 9.
Typical application circuit (switch always enabled)
(1) In the Enabled mode, the applied enable voltage and the applied voltage at Vref(1) should be
such that Vbias(ref)(2) is at least 1 V higher than Vref(1) for best translator operation.
Fig 10. Typical application circuit (switch enable control)
002aab847
SCL1
SDA1
VREF1
GND
3
4
VREF2
1
6
5
SCL2
SDA2
8EN
SW
SW
PCA9306
7
200 k
Ω
RPU
RPU
Vpu(D) = 3.3 V(1)
I2C-BUS
DEVICE
SCL
SDA
VCC
GND
2
Vref(1) = 1.8 V(1)
RPU
RPU
I2C-BUS
MASTER
SCL
SDA
VCC
GND
002aab848
SCL1
SDA1
VREF1
GND
3
4
VREF2
1
6
5
SCL2
SDA2
8EN
SW
SW
PCA9306
7
200 k
Ω
RPU
RPU
Vpu(D) = 3.3 V
I2C-BUS
DEVICE
SCL
SDA
VCC
GND
2
Vref(1) = 1.8 V(1)
RPU
RPU
I2C-BUS
MASTER
SCL
SDA
VCC
GND
on
off
3.3 V enable signal(1)



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