The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2000
Filed:
Dec. 23, 1997
Michael D Chaine, Missouri City, TX (US);
Thuyanh Bui, Sugar Land, TX (US);
Scott E Smith, Sugar Land, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An integrated circuit includes a voltage supply internal to the integrated circuit and circuitry for sensing the voltage level of the internal voltage supply, the circuitry responsive to produce a flag signal, VPUEN, that is in a first logical state when the voltage level is below the desired level and in a second logical state when the voltage level is above the desired level. The integrated circuit also includes a buffer driver 406 having an input terminal and an output terminal, the input terminal being coupled to the circuitry for sensing the voltage level of the internal voltage supply. The operation of the circuit is such that the output terminal 400 of the buffer driver is in a high-impedance state when the flag signal is in the first logical state, and is responsive to data signals on the input terminal to produce corresponding output signals at the output terminal when the flag signal is in the second logical state.