PCA9548APWR - Texas Instruments

Manufacturer Part Number

PCA9548APWR

Manufacturer

Texas Instruments

Introduction

PCA9548APWR is an I2C, SMBus translating switch designed for communication bus and signal distribution.

Product Features and Performance

8-channel I2C bus switch

Active-Low reset input

Channel selection via I2C bus

I2C Bus speeds up to 400 kHz

Low standby current

No glitch on power-up

Supports hot insertion

Product Advantages

Enables multiple masters and slaves on an I2C bus system

Isolates bus capacitances and allows for higher total bus capacitance

Prevents data corruption during live board insertion and removal

Key Technical Parameters

8 bidirectional translating switches

I2C and SMBus interface

Voltage supply from 2.3V to 5.5V

24-TSSOP packaging

Surface mount mounting type

Quality and Safety Features

Over-voltage tolerant

Noise filter on SCL/SDA inputs

Latch-up performance exceeds 100 mA per JESD 78, Class II

Compatibility

Compatible with I2C and SMBus protocols

Application Areas

Server systems

Distributed control systems

Telecommunications

Personal electronics

Product Lifecycle

Not For New Designs (last orders typically allowed, replacement may be available)

Contact manufacturer for end-of-life details and support

Reasons to Choose This Product

Resolution of bus conflict issues in complex environments

Flexible for systems requiring multiple I2C devices or extenders

Texas Instruments quality and support

Enables design scalability with multiple bus management

Reduces design complexity by allowing different system voltages on each channel