P82B715
P82B715 is I2C bus extender manufactured by Texas Instruments.
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 p F on Main I2C Bus (Sx/Sy Side) and 3000 p F 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 m A 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 munications
- Industrial munications
3 Description
The P82B715 is a device for buffering highlycapacitive 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)
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
Sx/SDA
P82B715 Buffer
Lx/LDA
Sy/SCL
Buffer
Ly/LCL
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.
SCPS145B
- DECEMBER 2007
- REVISED FEBRUARY...