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Switches an I²C controller between four downstream buses to manage address conflicts.
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L=29mm W=18mm H=2.66mm
Shipped in 24 Hours from Mumbai Warehouse
Simplify I²C expansion and address conflicts with the 7SEMI TCA9544A I²C MUX Board. This 4-channel bidirectional I²C/SMBus multiplexer supports seamless switching between multiple slave devices and offers advanced interrupt logic, reset functionality, and voltage-level translation.
Based on the reliable TI TCA9544A IC, the board enables a single I²C master to communicate with up to four downstream I²C buses, each with its own interrupt line (INT0–INT3). This is especially useful in projects involving identical sensor devices, data acquisition systems, or industrial I/O multiplexing.
4-Channel Bidirectional I²C Switching
Voltage Translation between 1.8V, 2.5V, 3.3V, and 5V buses
I²C Controlled Channel Selection with dedicated address bits
Interrupt Support: independent interrupt inputs (INT0, INT1, INT2, INT3) and one combined output
RESET Input to recover from stuck bus scenarios
Compatible with SMBus and Standard/Fast I2C (up to 400kHz)
5.5V-Tolerant Inputs with low standby current
Operating Voltage: 1.65V – 5.5V
Connect multiple I²C devices with the same address on a single controller
Interface with multi-sensor arrays in smart farming, weather stations, or industrial IoT
Perform I²C bus isolation and debugging during development and testing
Control separate smart home or building automation zones with identical sensors
Expand I²C peripherals in robots, drones, and embedded systems
Switch between I²C-controlled displays, actuators, and EEPROM banks
1x TCA9544A I2C MUX Board
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Use coupon code 7SEMI to get 10% discount on your first order