Patent Number: 6,166,580

Title: CMOS high-to-low voltage buffer

Abstract: A voltage-buffer circuit for changing an input signal at a first voltage range to an output signal at a second voltage range. In one embodiment, the voltage-buffer circuit is comprised of an input lead for receiving an input signal at a first voltage range, a plurality of transistors coupled to the input lead, and an output lead coupled to the plurality of transistors. The purpose of the transistors is to convert the input signal at the first voltage range to an output signal at a second voltage range. The output lead is for receiving the output signal at the second voltage range from said plurality of transistors. The plurality of transistors are arranged into a plurality of stages, with at least one of the transistors having a gate oxide of a first thickness and at least one of the transistors having a gate oxide of a second thickness, where the first thickness is less than said second thickness.

Inventors: Sessions; D. C. (Phoenix, AZ)

Assignee: VLSI Technology, Inc.

International Classification: H01L 27/092 (20060101); H01L 27/085 (20060101); H03L 005/00 ()

Expiration Date: 12/26/2017