Download the TC74VHC163FS datasheet PDF.
This datasheet also covers the TC74VHC161FS variant, as both devices belong to the same synchromous presettable 4-bit counter family and are provided as variant models within a single manufacturer datasheet.
Note: The manufacturer provides a single datasheet file (TC74VHC161FS-ToshibaSemiconductor.pdf) that lists specifications for multiple related part numbers.