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IC BUS SWITCH 1 X 8:1 24-VQFN

8/19/2025 2:47:26 AM

Texas Instruments TCA9548ARGER

Part No.:: TCA9548ARGER

Manufacturer:: Texas Instruments

Category:: Posts

Datasheet:: TCA9548ARGER.pdf

Description:: IC BUS SWITCH 1 X 8:1 24VQFN

Quantity:: RFQ

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TCA9548ARGER details

The TCA9548ARGER is an 8-channel I2C/SMBus multiplexer developed by Texas Instruments (TI). Below is a detailed description of this device:

Basic Information

Product Type: Signal switch, multiplexer, decoder.

Package Type: 24-pin VQFN (4x4) package, surface-mount technology (SMT).

Product Status: Active.

RoHS Compliance: RoHS 3 compliant.

Electrical Characteristics

Supply Voltage: Supports a VCC supply voltage range of 1.65V - 5.5V.

I2C Signal Level: Compatible with I2C signal levels from 1.65V to 5.5V, with IO levels independent of VCC.

On-Resistance: The typical on-resistance (Ron) when the channel is conducting is only 130Ω (@VCC = 5V).

Power Consumption: Standby current is just 1μA (@VCC = 5V), and operating current is ≤100μA (single channel conducting).

Communication Characteristics

I2C Slave Address: The default 7-bit slave address is 0x70, which can be configured to 8 addresses (0x70 - 0x77) via the A0/A1/A2 pins.

Communication Protocol: The master controller controls its internal switch state by sending a "channel selection command". It is fully transparent to I2C signals, so the master controller does not need to modify the original sensor driver code.

Functional Characteristics

Reset Function: Features an active-low reset input pin. In case of system timeouts or other improper operations, this pin can be used to reset the state machine and restore the TCA9548A to normal operation. During power-on reset, all channels are closed, and the I2C/SMBus state machine is initialized simultaneously.

Hot-Swapping Support: Allows slave devices to be inserted or removed while the system is running. Built-in ESD protection (±2kV HBM) prevents electrostatic damage during operation.

Bus Isolation: Non-conducting channels are completely isolated from the main bus, with a leakage current ≤1μA, avoiding capacitive load interference on the bus from inactive sensors.

Application Scenarios

Consumer Electronics: Used in multi-sensor modules such as smart watches, which simplifies design and improves data sampling efficiency.

Industrial Automation: Suitable for centralized management of sensor arrays. Multiple channels can be expanded through cascading, and only one I2C interface of the main controller is required to manage all devices.

Medical Electronics: Can shorten the rise time of I2C signals, effectively reducing communication errors caused by excessively slow signal edges. It is applicable to medical equipment with high requirements for signal reliability.

Automotive Electronics: Its industrial-grade temperature range and high anti-interference capability ensure stable communication of in-vehicle sensors such as cameras and radars.

Packaging:
Tape & Reel (TR),Cut Tape (CT)
Series:
TCA
ProductStatus:
Active
Type:
Bus Switch
Circuit:
1 x 8:1
IndependentCircuits:
1
Current-OutputHighLow:
-
VoltageSupplySource:
Single Supply
Voltage-Supply:
1.65V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount
Category:
Posts
Datasheet:
TCA9548ARGER.pdf

1.How to find the detailed information of TCA9548ARGER chips/componets? Including Microchip Technology original factory information, TCA9548ARGER pictures, Posts application?

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2.How does E-BEST INDUSTRIAL (HK) CO.,LTD guarantee that TCA9548ARGER is the original manufacturer or agent of Microchip Technology?

We have a very professional business development department to strictly test and verify the qualifications of Microchip Technology original manufacturers and agents. All Microchip Technology suppliers must pass the qualification review before they can publish their TCA9548ARGER devices; we pay more attention to the channels and quality of TCA9548ARGER products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3.Are the TCA9548ARGER price and stock displayed on the platform accurate?

The Microchip Technology's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for TCA9548ARGER, it is recommended to confirm the order with E-BEST INDUSTRIAL (HK) CO.,LTD salesperson or online customer service before payment.

4.What forms of payment can I use in E-BEST INDUSTRIAL (HK) CO.,LTD?

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5.How is the shipping arranged and track my package?

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Once your order has been processed for shipment, our sales will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, and Registered Mail needs 25-60 days.

6. What is the process for returns or replacement of TCA9548ARGER?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TCA9548ARGER we delivered, we will accept the replacement or return of the TCA9548ARGER only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of TCA9548ARGER.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations