P82B96TD,118

Signal Buffers, Repeaters, Splitters Overview

The P82B96TD,118 is a dual bidirectional bus buffer manufactured by NXP Semiconductors in an SO8 package. It creates a non-latching interface between standard I2C-bus logic and other bus configurations with different voltage or current levels. The device supports a supply voltage range of 2 V to 15 V, allowing the Sx/Sy side logic levels to remain independent of the supply voltage. It provides high drive capability with Tx/Ty outputs capable of sinking up to 60 mA static current and 100 mA dynamic pull-down current. The IC isolates capacitance, permitting 400 pF on the Sx/Sy side and 4000 pF on the Tx/Ty side. It operates at frequencies up to 400 kHz over distances of at least 20 meters.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides bidirectional data transfer for I2C-bus signals while isolating capacitance between local and remote nodes.
• Features Tx/Ty outputs with high sink capability suitable for driving low-impedance or high capacitive buses.
• Splits I2C-bus signals into separate forward/reverse pairs (Tx/Rx, Ty/Ry) to facilitate galvanic isolation via opto-couplers.

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C-buses operating at different logic levels such as 5 V and 3 V or 15 V
• Interface between I2C-bus and SMBus (350 µA) standard
• Conversion of I2C-bus SDA or SCL signals to multi-drop differential bus hardware
• Opto-isolation between I2C-bus nodes using opto-couplers

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature rating. The P82B96TD,118 designation corresponds to the SO8 plastic small outline package. Ensure the application environment falls within the specified -40 °C to +85 °C operating range. Confirm that the system design accounts for the bipolar process characteristics and latch-up free nature of the component.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C bus distance or interfacing disparate voltage domains without protocol restrictions. The P82B96 is appropriate for applications requiring high drive strength (up to 60 mA) and significant capacitance buffering. Consider the P82B96DPZ if a TSSOP8 package is required instead of the SO8 variant. Ensure the design accommodates the separation of Tx/Rx and Ty/Ry signals if galvanic isolation is utilized.

Signal Buffers, Repeaters, Splitters Part Context

The P82B96 is part of NXP's I2C/I3C bus repeaters, buffers, and extenders product family. It serves as a solution for expanding I2C networks beyond standard capacitance limits and voltage constraints. The device complements other interface components like multiplexers and switches by providing robust signal buffering and level translation capabilities for long-distance or noisy environments.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The P82B96DPZ is a drop-in alternate for the P82B96DP,118, offering the same functionality in a TSSOP8 package. No direct pin-compatible replacement within the same package footprint is explicitly listed in the provided documentation; verify package compatibility before substitution.