B2B GST Credit Available
- Stock: 0 in Stock
- SKU: 08870
- Delivery Time
- Bulk & B2B RFQ
7semi TCA9544A I2C Multiplexer Board – 4-Channel I2C Bus Switch
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.
Features
- 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
Specifications
- IC: TCA9544APWR
- Bus Channels: 4 (SC0/SD0 to SC3/SD3))
- Control Interface: I²C
- Address Select: A0, A1, A2 (support 8 device combinations)
- Interrupt Lines: INT0–INT3 (inputs), INT (combined output)
- Reset Input: Active-low RESET pin
- Operating Voltage: 1.65V to 5.5V
- Max Clock Frequency: 400kHz (Fast-mode I²C)
- Board Dimensions: Approx.28.67mm x17.78mm
- Board Weight: 2g
Package Includes
- 1x 7semi TCA9544A I2C Multiplexer Board – 4-Channel I2C Bus Switch
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
