PCA9306DCTR Datasheet

Translation - Voltage Levels


This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2.The PCA9306DCTR allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin.The low ON-state resistance (ron) of the switch allows connections to be made with minimal propagation delay.When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports. PCA9306DCTR Features • 2-Bit Bidirectional Translator for SDA and SCL Lines in Mixed-Mode I2C Applications• Provides Bidirectional Voltage Translation With No Direction Pin• Low 3.5-Ω ON-State Connection Between Input and Output Ports Provides Less Signal Distortion• Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2, and SDA2)• 5-V Tolerant I2C I/O Ports to Support Mixed-Mode Signal Operation• High-Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN = Low


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