I received a shipment of TCA9548A multiplexes in an anti-static bags. Slip in between the folds of one of the packages was this module. I suspect it is a long lost chip trying to find it way home. I've been unsuccessful in discovering what it is, so I can't give it purpose. Any suggestions?
The silver package to the left has the markings 1244 U401 001. The black components towards the top od the PCB has LB2K. There are no components or markings on the back of the board.
Anyone see this beast before?
The dimension of the board is 1cm square. It came with a five pin header not soldered.
