Editing Lookup table (section)

=== Hardware LUTs ===
In [[digital logic]], a lookup table can be implemented with a [[multiplexer]] whose select lines are driven by the address signal and whose inputs are the values of the elements contained in the array. These values can either be hard-wired, as in an [[ASIC]] whose purpose is specific to a function, or provided by [[D latch]]es which allow for configurable values. ([[ROM]], [[EPROM]], [[EEPROM]], or [[random-access memory|RAM]].)

An ''n''-bit LUT can encode any ''n''-input [[Boolean function]] by storing the [[truth table]] of the function in the LUT. This is an efficient way of encoding [[Boolean logic]] functions, and LUTs with 4-6 bits of input are in fact the key component of modern [[field-programmable gate array]]s (FPGAs) which provide reconfigurable hardware logic capabilities.