P82B96DPZ

Signal Buffers, Repeaters, Splitters Overview

The P82B96DPZ is a dual bidirectional bus buffer manufactured by NXP Semiconductors in a TSSOP8 package. It creates a non-latching interface between standard I2C-bus and other bus configurations, supporting supply voltages from 2 V to 15 V. The device isolates capacitance, allowing 400 pF on the Sx/Sy side and up to 4000 pF on the Tx/Ty side. It features 60 mA sink capability for driving low-impedance buses and operates at 400 kHz over distances of at least 20 meters. The component provides separate directional Tx and Rx signals for galvanic isolation or balanced transmission lines.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional data transfer with capacitance isolation capabilities
• High drive strength for low-impedance or high capacitive loads
• Separate transmit and receive signal paths for isolation applications

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 to confirm the package type and temperature range. Ensure the part number matches the required application voltage and environmental conditions. Check for RoHS compliance and material declarations as specified in the manufacturer's documentation before procurement.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when interfacing I2C buses with significantly different voltage levels or high capacitive loads. It is suitable for extending bus length via twisted pairs or optical isolation. Ensure the system design accounts for the separate Tx/Rx pin configuration if using external isolators.

Signal Buffers, Repeaters, Splitters Part Context

The P82B96DPZ belongs to the P82B96 family of dual bidirectional bus buffers. It is functionally equivalent to the SO8 packaged variant but utilizes a TSSOP8 plastic thin shrink small outline package. This family is designed to eliminate restrictions on I2C-bus device counts and physical separation.

Signal Buffers, Repeaters, Splitters Replacement Considerations

P82B96DP,118 is a confirmed drop-in alternate part number for P82B96DPZ.

Signal Buffers, Repeaters, Splitters FAQ

Can the Sx and Sy pins be interconnected?

No, two or more Sx or Sy I/Os must not be interconnected as the design does not support this configuration.

What is the maximum output voltage level for Tx and Ty?

The maximum output voltage level for Tx and Ty is 15 V.

How does the device behave if VCC fails?

If VCC fails, neither the I2C-bus nor the Tx output will be held LOW; their open-collector configuration allows them to be pulled up to the rated maximum of 15 V.