That datasheet doesn't answer your question. You need to look at **broken link removed**. There, you can see that you won't be able to drive LEDs. Have a look at **broken link removed**, which is the same function but with open drain 20ma LED drivers.
If you want to stick to the 4094, the minimum hardware solution is probably emitter followers (NPN for logic high, PNP for logic low), or some small MOSFETs such as 2N7000 (for logic high). Small PMOSFETs for logic low are available, but harder to find.