Reading Timestamp value into an SSIS variable

I need to read the last timestamp value (MAX(TimeStampValue)) from a table, store it in a variable in SSIS and using the variable, perform a comparison against another table and load delta records. 

The string data type is not playing well with the timestamp data type and things get even more complicated if I try to store the timestamp value as a varchar in a table.

Is there any variable data types in SSIS that will store the timestamp value easier than a string?