Patents Represented by Attorney Gerald E. Lewis
  • Patent number: 6005794
    Abstract: The write port circuits of a static memory cell includes a first conditional conduction path between a first output of the latch and ground active if and only if both a word line input and a write data true bit line input receive active signals. The write port circuit includes a second conditional conduction path between a second output of the latch and ground active if and only if both the word line and a write data complement bit line receive active signals. The first and second conditional conduction paths may be formed by a series connection of the source-drain paths of two transistors. In each conditional conduction path the gate of a first transistor receives a corresponding column signal and the gate of a second transistor is connected to the word line. The first and second transistors for each conduction path may be N-channel MOS transistors formed in a single N-type region. The first and second transistors forming the conditional conduction paths may be in either order.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: December 21, 1999
    Assignee: Texas Instruments Incorporated
    Inventors: Bryan D. Sheffield, George B. Jamison, Stephen Wayne Spriggs