P82B715TD,112

Signal Buffers, Repeaters, Splitters Overview

The P82B715TD,112 is a bipolar I2C-bus extender manufactured by NXP Semiconductors in an 8-lead plastic small outline package (SO8). It extends practical separation distances between components on the I2C-bus by buffering both data and clock lines. The device provides dual bidirectional unity voltage gain buffers with no external directional control required. It supports supply voltages from 3 V to 12 V and operates at clock speeds up to 400 kHz. The buffer increases allowable system capacitance to approximately 3000 pF while maintaining individual bus loading below 400 pF. Logic signal levels are output without change and remain independent of the supply voltage.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual bidirectional logic signal buffers providing unity voltage gain without requiring external directional control
• Compatible with I2C-bus and derivative protocols including SMBus, PMBus, and DDC
• Logic signal input voltage levels are output unchanged and remain independent of the VCC supply voltage
• Provides tenfold impedance transformation to drive low-impedance bus wiring for improved noise immunity

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C-bus signals over long cables up to 30 meters or supporting total system capacitance of 3000 pF
• Multi-drop distribution of I2C-bus signals using low-cost twisted-pair cables
• AdvancedTCA radial IPMB architecture implementation
• Driving 30 mA Fm+ devices from standard 3 mA parts

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required packaging format. Check current production status as availability may vary. Ensure compliance with RoHS directives and environmental regulations relevant to your region before finalizing procurement decisions.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending I2C communication distance is required without isolating bus capacitance. It is suitable for applications needing compatibility with various bus buffers and masters/slaves that require low VOL levels. Consider alternative devices like P82B96 if static level offset isolation is necessary for noise reduction in high-interference environments.

Signal Buffers, Repeaters, Splitters Part Context

The P82B715 series includes variants such as P82B715PN in a DIP8 package and P82B715TD in an SO8 package. These devices share identical functional characteristics but differ in physical packaging and mounting style. The P82B715 family is designed to retain all operating modes of the standard I2C-bus while allowing significant extension of cable lengths and system capacitance limits.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct substitutes include P82B715DR and P82B715P from Texas Instruments. Alternative solutions for similar functionality involve the P82B96DGKR and P82B96P, which provide different isolation characteristics. Verify pinout compatibility and electrical specifications before implementing any replacement.