NXP P82B96 Bus Buffer IC SOIC-8

The NXP P82B96 Bus Buffer IC is a bipolar integrated circuit in an SOIC-8 package that provides a non-latching, bidirectional logic interface for bus communication. It is primarily used between a standard I²C bus and other bus configurations with differing voltage and current levels, bridging communication gaps without imposing restrictions on I²C bus protocols or clock speed.

Overview

The P82B96 can connect to 350mA SMBus, 3.3V logic devices and 15V levels. Its low-impedance drive capability enhances noise immunity over extended bus lengths and supports reliable 400kHz operation over distances of at least 20 metres of wire. The Tx/Ty outputs are designed to drive low-impedance or highly capacitive buses, and the device isolates bus capacitance, permitting 400pF on the Sx/Sy side and 4000pF on the Tx/Ty side. Loadings from remote bus nodes are not transmitted back to the local I²C node. The IC measures 3.3 by 1.5 by 4.3 (width, depth and height) and weighs 0.136 g.

Key Features

• Bipolar process with no latching structures, providing latch-up free operation
• Low power supply current
• Compact SOIC-8 package for space-constrained applications
• 60mA sink capability on the Tx/Ty outputs

Applications

The IC is suited to splitting I²C bus signals to interface with opto-electrical isolators and similar isolation devices. It is widely used across communications networking, consumer electronics, fibre optics and multimedia systems.

Choose the NXP P82B96 Bus Buffer IC when a compact, bidirectional bus buffer is required to interface I²C signals with bus systems of differing voltage and current levels.