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UCA9306L-S08-R Datasheet(PDF) 7 Page - Unisonic Technologies

Part # UCA9306L-S08-R
Description  DUAL BIDIRECTIONAL I2C BUS SMBUS VOLTAGE-LEVEL TRANSLATOR
PDF  9 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UCA9306L-S08-R Datasheet(HTML) 7 Page - Unisonic Technologies

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UCA9306
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
7 of 9
www.unisonic.com.tw
QW-R140-004.b
TYPICAL APPLICATION CIRCUIT
I2C bus
Master
(processor)
I2C slave device
UCA9306
SCL1
SDA1
SCL2
SDA2
VREF1
VREF2
EN
VCC
VREF1=1.8V
RPU
RPU
GND
GND
GND
VCC
VDPU=3.3V
200KΩ
Typical Application Circuit (Switch Always Enabled)
The applied voltages at VREF1 and VDPU should be such that VREF2 is at least 1 V higher than VREF1 for best
translator operation.
I2C bus
Master
(processor)
I2C slave device
UCA9306
SCL1
SDA1
SCL2
SDA2
VREF1
VREF2
EN
VCC
VREF1=1.8V
GND
GND
GND
VCC
VDPU=3.3V
200KΩ
Off
On
3.3V EN Signal
RPU
RPU
Typical Application Circuit (Switch Enable Control)
In the enabled mode, the applied enable voltage and the applied voltage at VREF1 should be such that VREF2 is at
least 1 V higher than VREF1 for best translator operation.



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