CN100539393C - 由外接振荡元件自动选择振荡电路的装置 - Google Patents

由外接振荡元件自动选择振荡电路的装置 Download PDF

Info

Publication number
CN100539393C
CN100539393C CNB2005100027081A CN200510002708A CN100539393C CN 100539393 C CN100539393 C CN 100539393C CN B2005100027081 A CNB2005100027081 A CN B2005100027081A CN 200510002708 A CN200510002708 A CN 200510002708A CN 100539393 C CN100539393 C CN 100539393C
Authority
CN
China
Prior art keywords
circuit
oscillating
initial
external
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2005100027081A
Other languages
English (en)
Chinese (zh)
Other versions
CN1808892A (zh
Inventor
谢武聪
郭建隆
刘建志
黄隆涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elan Microelectronics Corp
Original Assignee
Elan Microelectronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elan Microelectronics Corp filed Critical Elan Microelectronics Corp
Priority to CNB2005100027081A priority Critical patent/CN100539393C/zh
Publication of CN1808892A publication Critical patent/CN1808892A/zh
Application granted granted Critical
Publication of CN100539393C publication Critical patent/CN100539393C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
CNB2005100027081A 2005-01-19 2005-01-19 由外接振荡元件自动选择振荡电路的装置 Expired - Fee Related CN100539393C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100027081A CN100539393C (zh) 2005-01-19 2005-01-19 由外接振荡元件自动选择振荡电路的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100027081A CN100539393C (zh) 2005-01-19 2005-01-19 由外接振荡元件自动选择振荡电路的装置

Publications (2)

Publication Number Publication Date
CN1808892A CN1808892A (zh) 2006-07-26
CN100539393C true CN100539393C (zh) 2009-09-09

Family

ID=36840631

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100027081A Expired - Fee Related CN100539393C (zh) 2005-01-19 2005-01-19 由外接振荡元件自动选择振荡电路的装置

Country Status (1)

Country Link
CN (1) CN100539393C (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101626235B (zh) * 2008-07-09 2011-11-02 盛群半导体股份有限公司 一种振荡器操作模式控制方法及装置
CN103116974B (zh) * 2013-03-04 2015-06-17 中颖电子股份有限公司 降低内建振荡电路频率漂移的遥控器芯片

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1187716A (zh) * 1997-01-07 1998-07-15 佑华微电子股份有限公司 可自动选用内、外振荡电阻的单晶片振荡产生器
CN2456380Y (zh) * 2000-11-29 2001-10-24 晟瀚科技有限公司 分类频道遥控器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1187716A (zh) * 1997-01-07 1998-07-15 佑华微电子股份有限公司 可自动选用内、外振荡电阻的单晶片振荡产生器
CN2456380Y (zh) * 2000-11-29 2001-10-24 晟瀚科技有限公司 分类频道遥控器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
特开平6-196280 1994.07.15

Also Published As

Publication number Publication date
CN1808892A (zh) 2006-07-26

Similar Documents

Publication Publication Date Title
CN103956185B (zh) 具有非易失性逻辑阵列备份相关应用的处理装置
US6728891B2 (en) Method and circuit for performing automatic power on reset of an integrated circuit
AU742268B2 (en) Radiotelephones having contact-sensitive user interfaces and methods of operating same
US8143961B2 (en) Technique for detecting crystals
US8436664B2 (en) Circuit and method for implementing power good and chip enable control by a multi-functional pin of an integrated circuit
US7426667B1 (en) Apparatus and method for initializing an integrated circuit device and activating a function of the device once an input power supply has reached a threshold voltage
CN101772809B (zh) 防止高电压存储干扰的方法和电路
US20090102802A1 (en) Touch panel detection circuitry and method of operation
JP3274935B2 (ja) マイクロコンピュータ
EP0337684B1 (en) Clock signal switching device of an IC card
US6424228B1 (en) Stabilized phase lock detection circuits and methods of operation therefor
CN100539393C (zh) 由外接振荡元件自动选择振荡电路的装置
US8171193B2 (en) Master communication circuit, slave communication circuit, and data communicating method
US7181169B2 (en) Controlling apparatus and method of mobile communication terminal using electrostatic detection
US6477658B1 (en) Microprocessor with variable clock operation
JP3801247B2 (ja) 電気装置再起動回路
CN112904783B (zh) 低功耗高可靠性看门狗电路
US6900701B2 (en) Automatic detection, selection and configuration of clock oscillator circuitry
TW201316346A (zh) 在預充電期間保持狀態的資料儲存電路
CN102307101A (zh) 动态令牌及其触发信号处理方法和装置
JP5021964B2 (ja) 発振停止検出回路
KR100287770B1 (ko) 전원 온/오프신호 발생장치
TW530457B (en) Method enabling an exchange of data between a smart card and an apparatus in the case of an untimely interruption of the power supply for the apparatus
CN211785961U (zh) 一种震动开关的检测电路
US20180241388A1 (en) Semiconductor Device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090909

Termination date: 20170119