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P82B715
  • P82B715
  • P82B715
  • P82B715

P82B715

ACTIVE

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

Texas Instruments P82B715 Product Info

1 April 2026 3

Parameters

Features

Buffer

Protocols

I2C

Frequency (max) (MHz)

0.4

VCCA (min) (V)

3

VCCA (max) (V)

12

VCCB (min) (V)

3

VCCB (max) (V)

12

Supply restrictions

VCC Single Supply

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

PDIP (P)-8-92.5083 mm² 9.81 x 9.43

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)
  • 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)

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.

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