Can I connect two different 1-Wire Devices to the same data pin on an Arduino?
There seems to be no difference in the protocol for the various chips, and generally one wire protocols allow you to mix and match. The one wire protocol here basically has a way of cycling between the devices. Other devices ignore all communications until a certain pulse is sent, which switches to the next device. With this in mind, it seems logical that daisy-chaining different ICs will work as well, since there is only a small point in time where there is more than one IC truly involved in the communication. And at that point the protocol has nothing to do with the specific device, it's just a matter of a reset pulse.

Besides, the picture here makes it abundantly clear that the 1 Wire protocol allows one to chain different devices: