bus extender. P82B715 Datasheet

P82B715 extender. Datasheet pdf. Equivalent

Part P82B715
Description I2C bus extender
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P82B715
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P82B715
SCPS145B – DECEMBER 2007 – REVISED FEBRUARY 2016
P82B715 I2C Bus Extender
1 Features
1 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)
2 Applications
• HDMI DDC
• Long I2C Communications
• Industrial Communications
3 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
P82B715
SOIC (8)
PDIP (8)
4.90 mm × 3.91 mm
9.81 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
VCC
Sx/SDA
P82B715
Buffer
Lx/LDA
Sy/SCL
Buffer
Ly/LCL
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



P82B715
P82B715
SCPS145B – DECEMBER 2007 – REVISED FEBRUARY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics .......................................... 5
6.7 Typical Characteristics .............................................. 6
7 Parameter Measurement Information .................. 6
8 Detailed Description .............................................. 7
8.1 Overview ................................................................... 7
8.2 Functional Block Diagram ......................................... 7
8.3 Feature Description................................................... 7
8.4 Device Functional Modes.......................................... 8
9 Application and Implementation .......................... 9
9.1 Application Information.............................................. 9
9.2 Typical Application .................................................... 9
10 Power Supply Recommendations ..................... 13
11 Layout................................................................... 13
11.1 Layout Guidelines ................................................. 13
11.2 Layout Example .................................................... 13
12 Device and Documentation Support ................. 14
12.1 Community Resource............................................ 14
12.2 Trademarks ........................................................... 14
12.3 Electrostatic Discharge Caution ............................ 14
12.4 Glossary ................................................................ 14
13 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (February 2008) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
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