Initialization circuit

A logic gate is disclosed which includes a first logic gate circuit for generating an output signal representative of a function of two or more input signals. The present invention provides a NOR gate with a self-latching output, with minimal parts count and power consumption, which is suitable for use in a PAL system. Polarity option control logic is disclosed which provides an optimized design far a macrocell of a programmable logic array with a minimal parts count. Finally, an initialization circuit is disclosed which includes a latch circuit for providing a first stable output state immediately after the application of power thereto and a second stable output state at a certain delay on the application of power or when the power reaches a predetermined level.