Integrated circuit for level-shifting voltage levels

Details Integrated circuit for level-shifting voltage levels Integrated circuit for level-shifting voltage levels

2006-12-19

2006-12-19

Jeanglaude, Jean Bruner (Department: 2819)

Electronic digital logic circuitry

Interface

Logic level shifting

C326S081000, C326S063000

Reexamination Certificate

active

07151391

ABSTRACT:
An integrated circuit for level-shifting voltage signals comprising an input/output pad, and an input/output circuit coupled to the output pad having a plurality of devices operating with a bias supply voltage operable to shift between the range of the bias supply voltage to the range of an input/output supply voltage that is higher than the bias supply voltage is provided. In addition, an integrated circuit comprises an input circuit coupled to an input pad operable to input shift signals from an input/output supply voltage range to a core supply voltage range, an output circuit coupled to an output pad operable to shift output signals from a bias supply voltage range to an input/output supply voltage range, and a core circuit coupled to the input and output circuits and having a gate dielectric thickness substantially similar to a gate dielectric thickness of the input circuit and the output circuit.

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K. Joe Hass and David F. Cox / Level Shifting Interfaces for Low Voltage Logic / 9thNASA Symposium on VLSI Design 2000 / NASA Institute of Advanced Microelectronics Research Center, University of New Mexico, Albuquerque, New Mexico—pp. 3.1.1-3.1.7, no date.

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