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:
Nov. 05, 2002
Filed:
Mar. 29, 2001
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
The integrated device comprises a PMOS transistor and a voltage selector having an output connected to the bulk terminal of the PMOS transistor. The voltage selector comprises an input stage supplying a supply voltage or a programming voltage according to whether the device is in a reading step or in a programming step; a comparator connected to the output of the input stage, receiving a boosted voltage, and generating a first control signal, the state whereof depends upon the comparison of the voltages at the inputs of the comparator; a logic circuit connected to the output of the comparator and generating a second control signal, the state whereof depends upon the state of the first control signal and of a third-level signal; and a switching circuit controlled by the first control signal, by the second control signal, and by the third-level signal and supplying each time the highest among the supply voltage, the boosted voltage, and the programming voltage.