AI04 - I2C Extender (P82B715DR)

Overview

This xCHIP is an interface module, based on the P82B715DR by Texas Instruments. The P82B715DR is a bipolar device intended for I²C bus systems applications and supports bidirectional data transfer via the I²C bus. The P82B715DR buffers both the serial data (SDA) and serial clock (SCL) signals on the I²C bus and allows expansion of the I²C bus, while retaining all the operating modes and features of the I²C system.

3.3 volt from are also transmitted from one AI04 to another AI04, eliminating the need for separate power on the receiving end.

No specific coding is required to use a pair of AI04 as the I²C signal is transmitted transparently between the 2 sides.

A pair of AI04 are interconnected using patch cable (straight) version of the well-known RJ11 telephone style cable and plug points.

Product Highlights

• Supports bidirectional data transfer of I²C bus signals and 3.3 volt power.

Applications

• Long I²C communications
• Industrial communications
• Specific location or facing of sensors or other xChips

Specifications

• Dual bidirectional unity-voltage-gain buffer with no external directional control required
• Drives 10x lower-impedance bus wiring for improvised noise immunity
• Multi-drop distance of I²C signals using low-cost twisted-pair cables
• I²C bus operation over 50 meters of twisted-pair wire

Datasheet

P82B715DR Datasheet