P82B715PN,112

Signal Buffers, Repeaters, Splitters Overview

The P82B715PN,112 is a bipolar I2C-bus extender in an 8-lead DIP package. It buffers SDA and SCL lines to extend communication distance by reducing bus loading by a factor of ten. The device supports supply voltages from 3 V to 12 V and operates at clock speeds up to 400 kHz. It allows total system capacitance to reach approximately 3000 pF while maintaining individual bus capacitance below 400 pF. Operating temperature ranges from -40 °C to +85 °C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual bidirectional buffer with unity voltage gain and tenfold current amplification
• Compatible with I2C-bus, SMBus, PMBus, and DDC standards
• Logic signal levels remain independent of the supply voltage
• ESD protection exceeding 2500 V HBM

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C-bus systems over long cables up to 30 meters
• Multi-drop distribution using low-cost twisted-pair wiring
• AdvancedTCA radial IPMB architecture implementation

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific PN,112 suffix against the manufacturer's ordering table to confirm the DIP8 plastic dual in-line package variant. Ensure the design accommodates the lack of voltage level translation if interfacing with different logic families. Confirm that the total system capacitance remains within the specified limits for reliable operation.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C-bus distance without requiring electrical isolation between the standard bus and the buffered cable side. It is suitable for applications needing lower output impedance to drive high capacitance loads. Consider alternative devices if voltage level shifting or capacitive isolation is required for the application.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the P82B715 family of I2C-bus extenders manufactured by NXP Semiconductors. The family includes variants such as the SO8 surface mount version (P82B715TD). These devices are designed specifically to overcome the 400 pF capacitance limitation inherent in standard I2C-bus specifications.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct substitutes include the Texas Instruments P82B715DR and P82B715P. Verify pin compatibility and package dimensions before replacement. Note that the original NXP product may be discontinued depending on the specific manufacturing date code.