Is NXP's PCA9548A compatible with TI's TCA9548A?
Texas Instruments say: -


  Recommended alternative parts
  
  TCA9548A  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   TCA9548A is an
  enhanced version of the PCA9548A with an extended supply voltage range
  and performance enhancements related to Power-On Reset.


Now in this statement they are comparing their TCA9548A with their PCA9548A so there could be some doubt about this applying the NXP part.