STMicroelectronics L9963T-TR, Battery Backup IC, 18mA 64-Pin, SO16N

The STMicroelectronics L9963T series is a general purpose SPI to isolated SPI transceiver intended to create a communication bridge between devices located into different voltage domains. It is able to transfer communication data incoming from a classical 4-wire based SPI interface to a 2-wire isolated interface (and viceversa).

AEC-Q100 qualified
Full ISO26262 compliant, ASIL-D systems ready
Compatible with both 3.3 V and 5 V logics
Supports both XFMR and Capacitive isolation