Patent · US Expired

Dynamic flip flop

US6586981B2 · kind B2 · utility

7Cited by
6References
29Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 13, 2001
Grant dateJul 1, 2003
Priority date
Expiry dateDec 13, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C19/28
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

It is intended to provide a dynamic flip flop that prevents a floating signal from maintaining a voltage below a substrate voltage level in a P-type semiconductor substrate and that prevents a floating signal from maintaining a voltage exceeding the substrate voltage level in an N-type semiconductor substrate. In the dynamic flip flop, an N-type MOSFET (5) controlled by an output signal MX from an inverter (2) and an N-type MOSFET (6) controlled by an output signal Q from an inverter (4) are provided as switches for short-circuiting a signal M and a signal QX to be brought into a floating state to a substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.