P82B96TD/S900,118

Signal Buffers, Repeaters, Splitters Overview

The P82B96TD/S900,118 is a dual bidirectional bus buffer manufactured by NXP Semiconductors. It creates a non-latching logic interface between standard I2C-bus and other bus configurations with different voltage or current levels. The device supports a supply voltage range of 2 V to 15 V and operates within an ambient temperature range of -40 °C to +125 °C. It isolates capacitance, allowing 400 pF on the Sx/Sy side and 4000 pF on the Tx/Ty side. The Tx/Ty outputs provide 60 mA sink capability for driving low-impedance buses. It enables operation over at least 20 meters of wire at 400 kHz.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional data transfer of I2C-bus signals
• Isolates capacitance between local and remote bus nodes
• Tx/Ty outputs have high sink capability for driving low-impedance buses
• Splits I2C-bus signal into forward/reverse pairs for opto-isolation

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C-buses operating at different logic levels
• Interface between I2C-bus and SMBus (350 µA) standard
• Conversion of I2C-bus signals to multi-drop differential bus hardware
• Opto-isolation between I2C-bus nodes

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix /S900 indicates the extended industrial temperature range (-40 °C to +125 °C). Confirm package type SO8 matches design requirements. Check availability status as some variants may be End of Life. Ensure static shielding bag handling protocols are followed during storage and assembly.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when galvanic isolation or significant capacitance buffering is required between I2C masters and slaves. The /S900 suffix is necessary for applications requiring operation up to +125 °C junction temperature. Verify that the buffered bus does not exceed the 15 V maximum rating. Ensure pull-up resistors support the required sink currents for the target cable length.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the P82B96 family of dual bidirectional bus buffers designed for I2C expansion. It allows connection of long cables or isolated segments without violating I2C protocol restrictions. The SO8 package provides a compact solution for space-constrained designs requiring robust signal integrity across varying voltage domains.

Signal Buffers, Repeaters, Splitters Replacement Considerations

P82B96DPZ is a drop-in alternate for P82B96DP,118 in TSSOP8 packages. For direct replacement of the SO8 variant, verify pin compatibility with existing layouts. No other direct substitutes are listed in the provided documentation.