Patents Represented by Attorney Richard L. Douglas

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  • BiCMOS bus interface output driver compatible with a mixed voltage system environment
    Patent number: 5276364
    Abstract: A low voltage BiCMOS output driver that is operable in a mixed voltage signal environment is provided which comprises a pull-up transistor and blocking circuitry operable to block current flow from the mixed voltage signal environment through the BiCMOS output driver to its supply voltage source.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: January 4, 1994
    Assignee: Texas Instruments Incorporated
    Inventor: Christopher M. Wellheuser