PCA9548ADB Part Information

Details for PCA9548ADB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs

Part Description

The PCA9548A has eight bidirectional translating switches that can be controlled via the I2C bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register. The system master can reset the PCA9548A in the event of a timeout 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/initialization to occur without powering down the part.

Part Downloads

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Part Specifications

No. of Circuits 8
Supply Current 50µA
On State Resistance Max 45ohm
Supply Voltage Range 2.3V to 5.5V
Analog Switch Case Style SSOP
No. of Pins 24
Operating Temperature Min -40°C
RoHS Compliant

Alternative Part Descriptions

  • 8-channel 2.3- to 5.5-V I2C/SMBus switch with reset & voltage translation | Texas Instruments

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