PCA9517DR - Texas Instruments

Manufacturer Part Number

PCA9517DR

Manufacturer

Texas Instruments

Introduction

The PCA9517DR is a level translating I2C bus repeater that operates bidirectionally and is designed to provide buffering for long I2C bus lines.

Product Features and Performance

Bidirectional I2C bus buffering

Compatible with I2C and SMBus standards

Level translation from 0.9V to 5.5V

Supports hot-swappable I2C buses

Built-in rise-time accelerators

Product Advantages

Allows extension of I2C bus line

Supports mixed-mode voltage operations

Low power consumption

Enhances system reliability

Easy to integrate into existing designs

Key Technical Parameters

Data Rate (Max): 400kHz

Number of Channels: 2

Capacitance - Input: 6pF

Voltage - Supply Range: 0.9V ~ 5.5V, 2.7V ~ 5.5V

Current - Supply: 1.5mA

Operating Temperature Range: -40°C ~ 85°C

Quality and Safety Features

Ensures signal integrity over long distances

Protects against under-voltage lockout

Electrostatic discharge (ESD) protection

Compatibility

Interoperable with I2C and SMBus

Application Areas

Extending I2C buses in distributed systems

Level translation in multi-voltage systems

Telecommunications

Server motherboard applications

Product Lifecycle

Not For New Designs

Potential for future discontinuation with notice

Several Key Reasons to Choose This Product

Ideal for noise-prone environments

Supports multiple voltage domains

Facilitates easy I2C bus extension

Minimizes signal distortion over extended lines

Improves system scalability with minimal impact on signal integrity