Invention Grant
US08437177B2 Nonvolatile latch circuit and nonvolatile flip-flop circuit 有权
非易失性锁存电路和非易失性触发器电路

  • Patent Title: Nonvolatile latch circuit and nonvolatile flip-flop circuit
  • Patent Title (中): 非易失性锁存电路和非易失性触发器电路
  • Application No.: US13516875
    Application Date: 2012-01-19
  • Publication No.: US08437177B2
    Publication Date: 2013-05-07
  • Inventor: Yoshikazu Katoh
  • Applicant: Yoshikazu Katoh
  • Applicant Address: JP Osaka
  • Assignee: Panasonic Corporation
  • Current Assignee: Panasonic Corporation
  • Current Assignee Address: JP Osaka
  • Agency: Wenderoth, Lind & Ponack, L.L.P.
  • Priority: JP2011-010284 20110120
  • International Application: PCT/JP2012/000328 WO 20120119
  • International Announcement: WO2012/098897 WO 20120726
  • Main IPC: G11C11/00
  • IPC: G11C11/00
Nonvolatile latch circuit and nonvolatile flip-flop circuit
Abstract:
A nonvolatile latch circuit of the invention includes a variable resistance element which is formed by interposing an oxide layer between electrodes, and changes to a low resistance state by applying a voltage to cause current flow in the direction from the first to the second electrode, and changes to a high resistance state by applying a voltage to cause current flow in the reverse direction, wherein a first terminal of a transistor, a first terminal of other transistor, an output terminal of an inverter circuit, and an output terminal of other inverter circuit are respectively connected to one electrode, the other electrode, a second terminal of the transistor, and a second terminal of the other transistor, and a current flowing through the variable resistance element when changed to a low resistance state is smaller in absolute value than a current therethrough when changed to a high resistance state.
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