| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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24,767 pcs
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24767 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
32 pcs
|
32 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Automotive Grade | |
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| Military Grade | |
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The Texas Instruments TCA4311DR is a 2-bit bidirectional buffer designed for hot-swappable I2C and SMBus applications. It operates across a wide power-supply voltage range of 2.7V to 5.5V, making it versatile for various system designs.
This buffer supports bidirectional data transfer for I2C bus signals, with both SDA and SCL lines being buffered to increase fanout. A 1-V precharge on these lines helps prevent corruption during live board insertion and removal from a backplane. The device is suitable for standard mode and fast mode I2C devices.
Key electrical characteristics include a maximum operating frequency of 0.4MHz, a typical current consumption of 5.1mA, and a capacitance of 10 pF. The TCA4311DR is housed in an 8-SOIC package and is designed for surface mount applications.
This component is particularly useful for applications involving hot board insertion and bus extension. It features a low chip disable current of less than 1 µA and an open-drain output that supports clock stretching, arbitration, and synchronization. The powered-off I2C pins remain in a high-impedance state.
| Qty | Low | High |
|---|---|---|
| 1+ | $3.75 | $3.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TCA4311DR operates over a power-supply voltage range of 2.7V to 5.5V.
The TCA4311DR is available in an 8-SOIC package.
The operating temperature range for the TCA4311DR is -40°C to 85°C.
The TCA4311DR supports a maximum frequency of 0.4MHz.
The TCA4311DR is a 2-bit bidirectional hot-swappable I2C/SMBus buffer.
The TCA4311DR is designed for applications including hot board insertion and bus extension.