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Updated at 24/10/2025 10:30:15(UTC+8)

Certifications

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Description

The TCA9548APWR is an eight-channel Bidirectional Translating Switch can be controlled through the I²C bus. The SCL/SDA upstream pair fans out to eight downstream pairs or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. The system master can reset the TCA9548A in the event of a time-out or other improper operation by asserting a low in the RESET input. Similarly, the power-on reset deselects all channels and initializes the I²C/SMBus state machine. Asserting RESET causes the same reset and initialization to occur without powering down the part. 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 or 2.5 or 3.3V parts can communicate with 5V parts, without any additional protection.
Active-Low Reset Input
Power up with all switch channels deselected
Low Ron switches
No glitch on power-up
Supports hot insertion
Low standby current consumption
5V Tolerant inputs
0 to 400kHz Clock frequency
Latch-up performance exceeds 100mA per JESD 78, class II
Green product and no Sb/Br
Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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TCA9548APWR Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	TSSOP-24
Supply Voltage (DC)	1.65V ~ 5.50V
Number of Outputs	1 Output
Number of Positions	24 Position
Propagation Delay Max (tpd)	1.00 ns
Number of Inputs	8 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	1.65V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	1.65 V
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Size-Height	1.05 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
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- Decapsulation control
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- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity

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