I am going to guess: Yes, they are interchangeable for your application. DigiKey links to the same data sheet for both of them. Page 3 of the datasheet lists some differences which should not matter much, although I don't know exactly what all of those differences are.
both parts are very similar. the TLC555IP has a wider operating temperature (-40to+85c), and will work down to 3volt power input. From the datasheet, it is the same otherwise. I would say that you are totally fine using this part as long as your power supply is more than 4 volts