Application-specific integrated circuit equivalents of programmable logic and associated methods

An integrated circuit device comprising:

• a plurality of logic element circuitries, each logic element circuitry comprising:
• selection circuitry for using a first selection circuit input signal to select one of second and third selection circuit input signals as a selection circuit output signal;
• logic circuitry for providing a logic circuit output signal which is a logical function of first and second logic circuit input signals;
• and
• a first programmable interconnection circuitry configured to couple a signal from a the selection circuit output signal to at least one of the first and second logic circuit input signals.

A method for using logic element circuitry, the method comprising:

• selecting second selection circuit input signal or third selection circuit input signal as a selection circuit output signal using a first selection circuit input signal;
• providing a logic circuit output signal, said logic circuit output signal being a logical function of first and second logic circuit input signals;
• and
• coupling a signal from a group consisting of the selection circuit output signal and a signal from outside the logic element to at least one of the first and second logic circuit input signals.