Name: I2C Multiplexer TCA9548A PW548A 8-CH Module
SKU: 17283
Price: 500.00 PKR
Availability: InStock

The I2C Multiplexer TCA9548A is controlled by the I2C bus, so TCA9548A I2C Multiplexer is easy to interface with microcontrollers and other devices. The TCA9548A I2C Multiplexer module can support up to 8 channels, so you can connect up to 8 I2C devices with the same address.

The I2C Multiplexer TCA9548A PW548A 8-CH Module is a small, easy-to-use device that allows you to connect up to 8 I2C devices with the same address to a single I2C bus. This is useful in situations where you need to connect multiple devices that share the same address, such as temperature sensors or LED drivers.

The TCA9548A module is controlled by the I2C bus. To select a specific device, you send a byte to the module with the desired channel number. For example, to select channel 0, you would send the byte 0x00. Once a channel is selected, all I2C traffic will be routed to that device.

Finally, a way to get up to 8 same-address I2C devices hooked up to one microcontroller – this i2c multiplexer TCA9548a acts as a gatekeeper, shuttling the commands to the selected set of I2C pins with your command.

the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77) and you simply write a single byte with the desired multiplexed output number to that port, and bam – any future I2C packets will get sent to that port. In theory, you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part.

CJMCU-9548 TCA9548A Breakout enables communication with multiple I2C devices that have the same address making it simple to interface with them. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. These downstream channels can be used to resolve I2C slave address conflicts.

The pass gates of the switches are constructed so that the VCC pin can be used to limit the maximum high voltage, which is passed by the TCA9548A. Limiting the maximum high voltage allows the use of different bus voltages on each pair, so that 1.8-V, 2.5- V or 3.3-V parts can communicate with 5-V parts, without any additional protection. External pullup resistors pull the bus up to the desired voltage.

Features: –

1-to-8 Bidirectional translating switches
I2C Bus and SMBus compatible
Active-low reset input
Three address pins, allowing up to eight TCA9548A devices on the I 2C bus
Channel selection through an I 2C Bus, in any combination
Power up with all switch channels deselected
Low RON switches
Allows voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V buses
No glitch on power up
Supports hot insertion
Low standby current
Operating power-supply voltage range of 1.65 V to 5.5 V
5-V Tolerant inputs
0- to 400-kHz Clock frequency
Latch-up performance exceeds 100 mA Per JESD 78, class II
ESD Protection exceeds JESD 22 – ±2000-V Human-body model (A114-A) – 200-V Machine model (A115-A) – ±1000-V Charged-device model (C101)

I2C Multiplexer TCA9548a Specifications: –

Operating Voltage: 1.65V – 5.5V
Operating Temperature: -40 – 85° C
I2C Address: 0x70 (default) up to 0x77
10x Qwiic Connectors
2x Pass Through (Daisy Chain)
8x Channels

I2C Multiplexer TCA9548a Applications: –

Servers
Routers (telecom switching equipment)
Factory Automation
Products with I 2C slave address conflicts (such as multiple, identical temperature sensors)