PCA9548 8-channel I2C Switch With Reset

The PCA9548 is a octal bi-directional translating Switch controlled by 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 An active-LOW reset input allows the PCA9548 to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I2C state machine and causes all the channels to be deselected as does the internal power on reset function. The pass Gates of the switches are constructed such that the VDD pin CAN be used to limit the maximum high voltage which will be passed by the PCA9548. This allows the use of different bus voltages on each pair, so that 1.8 V, 2.5 V, or 3.3 V parts CAN communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.
By NXP Semiconductors
Part Manufacturer Description Datasheet Samples
PCA9548ADWG4 Texas Instruments 8-Channel I2C Switch With Reset 24-SOIC -40 to 85
PCA9548ADW Texas Instruments 8-Channel I2C Switch With Reset 24-SOIC -40 to 85
PCA9548ADB Texas Instruments 8-Channel I2C Switch With Reset 24-SSOP -40 to 85
PCA9548APW Texas Instruments 8-Channel I2C Switch With Reset 24-TSSOP -40 to 85
PCA9548ADGVRG4 Texas Instruments 8-Channel I2C Switch With Reset 24-TVSOP -40 to 85
PCA9548ARGERG4 Texas Instruments 9548 SERIES, 8 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, QCC24, GREEN, QFN-24
PCA9548ADBR Texas Instruments 8-Channel I2C Switch With Reset 24-SSOP -40 to 85
PCA9548APWR Texas Instruments 8-Channel I2C Switch With Reset 24-TSSOP -40 to 85
PCA9548ADBG4 Texas Instruments 8-Channel I2C Switch With Reset 24-SSOP -40 to 85
PCA9548APWG4 Texas Instruments 9548 SERIES, 8 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TSSOP-24
PCA9548 's PackagesPCA9548 's pdf datasheet



PCA9548 Pinout, Pinouts
PCA9548 pinout,Pin out
This is one package pinout of PCA9548,If you need more pinouts please download PCA9548's pdf datasheet.

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