PROGRAMMABLE INTEGRATED LOGICAL DEVICE

摘要

PURPOSE: To provide a programmable logic device which can be programmed at a very high speed. CONSTITUTION: A programmable integrated logic device is composed of a programmable array containing a plurality of input lines and a plurality of product term lines, a device terminal, a tri-state output driver provided with an input connected to the subset of the product term lines and an output connected to the device terminal, a digital multiplexer 140 provided with at least two input terminals and one output terminal, and a means which controls the multiplexer 140 for selecting one of product term signals to the output diver and preset logic signals as a control logic signal for transmission.