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
