2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I2C Applications
I2C and SMBus Compatible
Less than 1.5-ns Maximum Propagation Delay to Accommodate Standard-mode and Fast-mode I2C Devices and Multiple Masters
Allows Voltage-level Translation Between
1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V VREF2
1.8-V VREF1 and 2.5-V, 3.3-V, or 5-VVREF2
2.5-V VREF1 and 3.3-V or 5-VVREF2
3.3-V VREF1 and 5-V VREF2
Provides Bidirectional Voltage Translation with no Direction Pin
Low 3.5-Ω ON-state Resistance 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
Lockup-free Operation for Isolation when EN = Low
Flow-through Pinout for Ease of Printed-circuit-board Trace Routing
Latch-up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
1000-V Charged-Device Model (C101)
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Description for the PCA9306
The PCA9306 device is a dual bidirectional I2C and SMBusvoltage-level translator with an enable (EN) input, and is operational from 1.2-V to 3.3-VVREF1 and 1.8-V to 5.5-V VREF2.
The PCA9306 device 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 theswitch allows connections to be made with minimal propagation delay. When EN is high, thetranslator 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 switchis off, and a high-impedance state exists between ports.
In addition to voltage translation, the PCA9306 device can be used to isolate a 400-kHzbus from a 100-kHz bus by controlling the EN pin to disconnect theslower bus during fast-mode communication.
NEW - You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.
A custom reel
is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.
Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.TI often ships
devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.
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