TCA4311D Semiconductors - ICs by Texas Instruments

IC HOT SWAP I2C BUS BUFF 8-SOIC

Electronic & Electrical Components>Semiconductors - ICs>Driver & Interface ICs
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The TCA4311 is a hot swappable I2C bus buffer that supports I/O card insertion into a live backplane without corruption of the data and clock busses. Control circuitry prevents the backplane from being connected to the card until a stop command or bus idle occurs on the backplane without bus contention on the card. When the connection is made, this device provides bidirectional buffering, keeping the backplane and card capacitances isolated. During insertion, the SDA and SCL lines are precharged to 1 V to minimize the current required to charge the parasitic capacitance of the chip. When the I2C bus is idle, the TCA4311 can be put into shutdown mode by setting the EN pin low. When EN is high, the TCA4311 resumes normal operation. It also includes an open drain READY output pin, which indicates that the backplane and card sides are connected together. When READY is high, the SDAIN and SCLIN are connected to SDAOUT and SCLOUT. When the two sides are disconnected, READY is low. Both the backplane and card may be powered with supply voltages ranging from 2.7 V to 5.5 V, with no restrictions on which supply voltage is higher. The TCA4311 has standard open-drain I/Os. The size of the pullup resistors to the I/Os depends on the system, but each side of this buffer must have a pullup resistor. The device is designed to work with Standard Mode and Fast Mode I2C devices in addition to SMBus devices. Standard Mode I2C devices only specify 3 mA in a generic I2C system where Standard Mode devices and multiple masters are possible. Under certain conditions, high termination currents can be used.

No distributors results available

Specifications

IC Interface Type I2C
Interface Applications Hot Board Insertion Bus Extension
Supply Voltage Min 2.7V
Supply Voltage Max 5.5V
Interface Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Phthalates Compliant Yes
Operating Temperature Range -40°C to +85°C
Supply Voltage Range 2.7V to 5.5V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TCA4311D?

Additional datasheets, footprints and schematics for TCA4311D are listed on our Part Details page. You can also find images and similar parts to TCA4311D on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TCA4311D on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TCA4311D price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does TCA4311D fall under?

The TCA4311D is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to TCA4311D when available in the Driver & Interface ICs range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the TCA4311D you can contact the distributor directly for product support, shipping queries etc.

Is the TCA4311D RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for TCA4311D have stock available?

There is no stock from authorised distributors for TCA4311D.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for TCA4311D often in real-time on the comparison pages.

What if I can't find stock of TCA4311D?

You can fill out our help required form which you can use to request a quote for TCA4311D from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay