P82B715_16 Datasheet, PDF (1/22 Pages) Texas Instruments – I2C Bus Extender

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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
V_CC
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.