Datasheet
AI01 - I2C MultiPlexer
(PCA9548A/PCA9548)
Front
Back
☒
CHIP
Main Category Interface
Sub Category I2C MultiPlexer
Introduced 1 January 2017
Current version 1.0.1
Current version
date
1 January 2017
Dimensions
Size 2x2U (32x32mm)
Weight 3.1 g
Height 3.1/0/0 mm
Main Chip Set
Main Chip PCA9548A
Max. Frequency 400 kHz
I²C Configuration
Default Address 0x70
Alternative
Addresses
0x71 0x72 0x73 0x74 0x75
0x76 0x77
Change Setting Solder
XinaBox Datasheet AI01 - I2C MultiPlexer
Contents
1 Overview
2 Applications
3 Specifications
4 External Links
Overview
This xCHIP is an interface module, based on the PCA9548A by NXP Semiconductors, which
enables users to add more than one xCHIP with the same physical I
2
C address to a circuit. The
PCA9548A operates as an I
2
C channel selector, this functionality is what enables communication
with multiple I
2
C devices that have the same address. The channel selector ability is achieved
through an octal bidirectional translating switch controlled by the I
2
C-bus.
Product Highlights
Octal bidirectional translating switch
I
2
C-bus interface logic; compatible with SMBus standards
No glitch on power-up
Supports hot insertion
Applications
Communication systems
Computer memory
Telephone networks
Specifications
Active LOW reset input
Three hardware address pins allowing up to eight devices on the I
2
C-bus
Channel selection via I
2
C-bus, in any combination
Power-up with all switch channels deselected
Low R
ON
switches
Low standby current
0 Hz to 400 kHz clock frequency
External Links
GitHub Libraries
Arduino (https://github.com/xinabox/Arduino_AI01)