Patents Represented by Attorney Thomas W. Fitzgerald
  • Patent number: 4845675
    Abstract: A data latch with substantially zero hold time and with immunity to input data changes occurring after the latch has slewed toward a definable logic state. An input data flip-flop (10) is coupled via transfer transistors (40, 42) to an output data flip-flop (12). Output nodes (36,38) of the output data flip-flop (12) are prechargeable. Inhibit transistors (24,30) are cross-coupled between the input data flip-flop (10) and the output data flip-flop (12) to prevent input data changes from affecting the latch once the output data flip-flop (12) slews toward a definable stable state.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: July 4, 1989
    Assignee: Texas Instruments Incorporated
    Inventors: William R. Krenik, Wei-Chan Hsu