Programmable logic array integrated circuits with cascade connections between logic modules
May 8, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3473160 Special interconnect for configurable logic array Output circuit for a programmable logic array Configurable logic element Logic circuitry having two programmable interconnection arrays Configurable electrical circuit having configurable logic elements and configurable interconnects Programmable summing functions for programmable logic devices Coincidence extendable programmable logic device Registered logic macrocell with product term allocation and adjacent product term stealing Programmable logic cell and array Patent #: 5144166 InventorsApplicationNo. 880888 filed on 05/08/1992US Classes:326/41, Significant integrated structure, layout, or layout interconnections326/39, Array (e.g., PLA, PAL, PLD, etc.)326/47Significant integrated structure, layout, or layout interconnectionsExaminersPrimary: Westin, Edward P.Assistant: Driscoll, Benjamin D. Attorney, Agent or FirmInternational ClassH03K 019/177AbstractA programmable logic array integrated circuit has a number of relatively simple logic modules which can be interconnected in any of a wide variety of ways via a general purpose interconnection network to enable the circuit to perform logic functions which can be quite complex. In addition, at least some of the logic modules are connectable to one another by cascade connections and include additional logic elements for logically combining the outputs of the cascade connected modules so that modules can be concatenated to perform relatively complex logic functions without always having to make use of the general purpose interconnection network.Other References
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