Invention Grant
US08797078B2 Latch circuit, flip-flop circuit and frequency divider 有权
锁存电路,触发器电路和分频器

  • Patent Title: Latch circuit, flip-flop circuit and frequency divider
  • Patent Title (中): 锁存电路,触发器电路和分频器
  • Application No.: US13811921
    Application Date: 2010-07-27
  • Publication No.: US08797078B2
    Publication Date: 2014-08-05
  • Inventor: Saverio Trotta
  • Applicant: Saverio Trotta
  • Applicant Address: US TX Austin
  • Assignee: Freescale Semiconductor, Inc.
  • Current Assignee: Freescale Semiconductor, Inc.
  • Current Assignee Address: US TX Austin
  • International Application: PCT/IB2010/053408 WO 20100727
  • International Announcement: WO2012/014013 WO 20120202
  • Main IPC: H03K3/286
  • IPC: H03K3/286
Latch circuit, flip-flop circuit and frequency divider
Abstract:
The invention pertains to a latch circuit comprising a sensing arrangement with one or more sensing transistors adapted to sense an input signal and to provide a first signal based on the sensed input signal, and a sensing arrangement switch device connected or connectable to a first current source, the sensing arrangement switch device being adapted to switch on or off a current to the one or more sensing transistors based on a first clock signal. The latch circuit further comprises a storage arrangement with one or more storage transistors adapted to store the first signal and to provide a second signal based on the first signal, and a storage arrangement switching device connected or connectable to the first current source or a second current source, the storage arrangement switching device being adapted to switch on or off a current to the storage transistors based on a second clock signal, as well as a tuning arrangement connected or connectable to a temperature sensor, the tuning arrangement being adapted to bias a current of the sensing arrangement and/or the storage arrangement based on a temperature signal provided by the temperature sensor. The invention also pertains to a flip-flop circuit with two or more latch circuits and a frequency divider comprising at least one latch circuit as described.
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