Introduction to Digital Functions

The devices in the digital-functions class include the multiplexor, demultiplexor, the digital comparator, and the lookup tables. Because these devices are general purpose in nature they are grouped together in this set of topics.

The digital lookup table is one of the most powerful, and at the same time, one of the most overlooked of the SIMPLIS digital devices. Using a digital lookup table, you can easily implement, test, and revise complex logic, all without changing the schematic view of the design. There are two different types of lookup tables in SIMPLIS: one that handles specific definitions and one that allows you to specify don't care inputs.