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2-bit bidirectional 3- to 12-V 400-kHz I2C/SMBus buffer/cable extender

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P82B715P General Description

The P82B715 is a device for buffering highly-capacitive I2C bus systems, and it supports bidirectional data transfer through the I2C bus. The P82B715 buffers both the serial data (SDA) and serial clock (SCL) signals on the I2C bus and allows for extension of the I2C bus, while retaining all the operating modes and features of the I2C system.

For all available packages, see the orderable addendum at the end of the data sheet.

Texas Instruments, Inc Inventory

Key Features

  • Operating Power-Supply Voltage Range of 3 V to 12 V
  • Supports Bidirectional Data Transfer of I2C Bus Signals
  • Allows Bus Capacitance of 400 pF on Main I2C Bus (Sx/Sy Side) and 3000 pF on Transmission Side (Lx/Ly Side)
  • Dual Bidirectional Unity-Voltage-Gain Buffer With No External Directional Control Required
  • Drives 10× Lower-Impedance Bus Wiring for Improved Noise Immunity
  • Multi-Drop Distribution of I2C Signals Using Low-Cost Twisted-Pair Cables
  • I2C Bus Operation Over 50 Meters of Twisted-Pair Wire
  • Latch-up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2500-V Human-Body Model (A114-A)
    • 400-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)InterfaceSignal Buffers, Repeaters, Splitters Mfr Texas Instruments
Series - Package Tube
Product Status Active Type Buffer, ReDriver
Applications I²C Input 2-Wire Bus
Output 2-Wire Bus Data Rate (Max) -
Number of Channels 1 Delay Time -
Signal Conditioning - Capacitance - Input 3000 pF
Voltage - Supply 4.5V ~ 12V Current - Supply 22mA
Operating Temperature -40°C ~ 85°C Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm) Supplier Device Package 8-PDIP
Base Product Number P82B715

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After-Sales & Settlement Related

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customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

P**a 01/30/2024

Walked for a short time. Whole, all ok

S**l 08/16/2023

All function well thank you seller

G**n 10/04/2022

Received september 13 all is well thank you! Seller and shipping company.

L**s 11/13/2021

Dovgenko ishli to harkov, maje 40 dib. Uncle, i sit down, but shy.



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P82B715P Datasheet PDF

Preliminary Specification P82B715P PDF Download

P82B715P PDF Preview