XinaBox xCHIP I2C Multiplexer Module AI01

xChip Boards

xChips are a rapid electronics development ecosystem to help reduce development time and simplify making custom products as well as aiding learning. Without soldering, wiring, breadboarding, or hardware knowledge you can assemble a circuit in minutes, and concentrate on coding.

xChips are compatible with the platform you want to use and bridges are available for the most popular pltatforms; Raspberry Pi, Minnowboard, Beaglebone, Micro:bit, Pixhawk and 96 boards. Rather than bridging to Ardunio, we offer compatible cores for Arduino Uno, the CC01, and for Arduino Zero, the CC03.

xChips utilise I2C, and due to this bus architecture, unlimited expansion of circuits is possible. Limitations of I2C addresses have been negated by development multiplexers.

Because of its simple connection method, it is easy to build quickly - for prototyping and small product runs

xChips connect to each other using an xBus connector, available from RS 174-4977.

Some xChips need an xPDI connector (RS 174-4974) to connect to programming interfaces, such as the IP02 or IP03.

AI01 – I²C MultiPlexer (PCA9548A/PCA9548)

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 I²C address to a circuit. The PCA9548A operates as an I²C channel selector, this functionality is what enables communication with multiple I²C devices that have the same address. The channel selector ability is achieved through an octal bidirectional translating switch controlled by the I²C-bus.

Product Features

● Octal bidirectional translating switch
● I²C-bus interface logic; compatible with SMBus standards
● No glitch on power-up
● Supports hot insertion

Applications

● Communication systems
● Multiplexing of sensor devices

Product Specifications

● Active LOW reset input
● Three address pins allowing up to eight devices on the I²C-bus
● Channel selection via I²C-bus, in any combination
● Power-up with all switch channels deselected
● Low RON switches
● Low standby current
● 0 Hz to 400 kHz clock frequency

Xinabox Modular Prototyping Boards

Datasheet