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    首頁(yè)產(chǎn)品索引MC14490

    MC14490

    購(gòu)買(mǎi)收藏
    ?Hex Bounce Eliminator

    制造商:ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The MC14490 is constructed with complementary MOS enhancement mode devices, and is used for the elimination of extraneous level changes that result when interfacing with mechanical contacts. The digital contact bounce eliminator circuit takes an input signal from a bouncing contact and generates a clean digital signal four clock periods after the input has stabilized. The bounce eliminator circuit will remove bounce on both the "make" and the "break" of a contact closure. The clock for operation of the MC14490 is derived from an internal R-C oscillator which requires only an external capacitor to adjust for the desired operating frequency (bounce delay). The clock may also be driven from an external clock source or the oscillator of another MC14490 (see Figure 5).
    NOTE: Immediately after power-up, the outputs of the MC14490 are in indeterminate states.
    • Diode Protection on All Inputs
    • Six Debouncers Per Package
    • Internal Pullups on All Data Inputs
    • Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line
    • Internal Oscillator (R-C), or External Clock Source
    • TTL Compatible Data Inputs/Outputs
    • Single Line Input, Debounces Both "Make" and "Break" Contacts
    • Does Not Require "Form C" (Single Pole Double Throw) Input Signal
    • Cascadable for Longer Time Delays
    • Schmitt Trigger on Clock Input (Pin 7)
    • Supply Voltage Range = 3.0 V to 18 V
    • Chip Complexity: 546 FETs or 136.5 Equivalent Gates
    • Pb-Free Packages are Available

    電路圖、引腳圖和封裝圖

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    型號(hào)制造商描述購(gòu)買(mǎi)
    NLV14490DWR2GONMC14490 使用互補(bǔ) MOS 增強(qiáng)模式器件構(gòu)建而成,用于消除與機(jī)械觸點(diǎn)接口時(shí)導(dǎo)致的過(guò)大電平變化。數(shù)字觸點(diǎn)跳動(dòng)消除器電路從跳動(dòng)觸點(diǎn)獲取輸入信號(hào),該輸入穩(wěn)定之后生成一個(gè)明確的數(shù)字信號(hào)四時(shí)鐘時(shí)段。跳動(dòng)消除器電路將消除觸點(diǎn)殼體“合”和“開(kāi)”上的跳動(dòng)。MC14490 的運(yùn)行時(shí)鐘來(lái)自內(nèi)部 R-C 振蕩器,僅需一個(gè)外部電容器即可針對(duì)所需運(yùn)行頻率(跳動(dòng)延遲)進(jìn)行調(diào)節(jié)。該時(shí)鐘還可從外部時(shí)鐘源或另一個(gè) MC14490 的振蕩器驅(qū)動(dòng)(參見(jiàn)圖 5)。注釋: 通電之后,MC14490 的輸出將立即進(jìn)入非確定狀態(tài)。 立即購(gòu)買(mǎi)
    NLV14490DWGONMC14490 使用互補(bǔ) MOS 增強(qiáng)模式器件構(gòu)建而成,用于消除與機(jī)械觸點(diǎn)接口時(shí)導(dǎo)致的過(guò)大電平變化。數(shù)字觸點(diǎn)跳動(dòng)消除器電路從跳動(dòng)觸點(diǎn)獲取輸入信號(hào),該輸入穩(wěn)定之后生成一個(gè)明確的數(shù)字信號(hào)四時(shí)鐘時(shí)段。跳動(dòng)消除器電路將消除觸點(diǎn)殼體“合”和“開(kāi)”上的跳動(dòng)。MC14490 的運(yùn)行時(shí)鐘來(lái)自內(nèi)部 R-C 振蕩器,僅需一個(gè)外部電容器即可針對(duì)所需運(yùn)行頻率(跳動(dòng)延遲)進(jìn)行調(diào)節(jié)。該時(shí)鐘還可從外部時(shí)鐘源或另一個(gè) MC14490 的振蕩器驅(qū)動(dòng)(參見(jiàn)圖 5)。注釋: 通電之后,MC14490 的輸出將立即進(jìn)入非確定狀態(tài)。 立即購(gòu)買(mǎi)
    MC14490DWGONMC14490 使用互補(bǔ) MOS 增強(qiáng)模式器件構(gòu)建而成,用于消除與機(jī)械觸點(diǎn)接口時(shí)導(dǎo)致的過(guò)大電平變化。數(shù)字觸點(diǎn)跳動(dòng)消除器電路從跳動(dòng)觸點(diǎn)獲取輸入信號(hào),該輸入穩(wěn)定之后生成一個(gè)明確的數(shù)字信號(hào)四時(shí)鐘時(shí)段。跳動(dòng)消除器電路將消除觸點(diǎn)殼體“合”和“開(kāi)”上的跳動(dòng)。MC14490 的運(yùn)行時(shí)鐘來(lái)自內(nèi)部 R-C 振蕩器,僅需一個(gè)外部電容器即可針對(duì)所需運(yùn)行頻率(跳動(dòng)延遲)進(jìn)行調(diào)節(jié)。該時(shí)鐘還可從外部時(shí)鐘源或另一個(gè) MC14490 的振蕩器驅(qū)動(dòng)(參見(jiàn)圖 5)。注釋: 通電之后,MC14490 的輸出將立即進(jìn)入非確定狀態(tài)。 立即購(gòu)買(mǎi)
    MC14490DWR2GONMC14490 使用互補(bǔ) MOS 增強(qiáng)模式器件構(gòu)建而成,用于消除與機(jī)械觸點(diǎn)接口時(shí)導(dǎo)致的過(guò)大電平變化。數(shù)字觸點(diǎn)跳動(dòng)消除器電路從跳動(dòng)觸點(diǎn)獲取輸入信號(hào),該輸入穩(wěn)定之后生成一個(gè)明確的數(shù)字信號(hào)四時(shí)鐘時(shí)段。跳動(dòng)消除器電路將消除觸點(diǎn)殼體“合”和“開(kāi)”上的跳動(dòng)。MC14490 的運(yùn)行時(shí)鐘來(lái)自內(nèi)部 R-C 振蕩器,僅需一個(gè)外部電容器即可針對(duì)所需運(yùn)行頻率(跳動(dòng)延遲)進(jìn)行調(diào)節(jié)。該時(shí)鐘還可從外部時(shí)鐘源或另一個(gè) MC14490 的振蕩器驅(qū)動(dòng)(參見(jiàn)圖 5)。注釋: 通電之后,MC14490 的輸出將立即進(jìn)入非確定狀態(tài)。 立即購(gòu)買(mǎi)

    技術(shù)資料

    標(biāo)題類型大小(KB)下載
    Hex Contact Bounce EliminatorPDF161 點(diǎn)擊下載
    SO-16 WBPDF55 點(diǎn)擊下載
    MC14490_PKG.GIFUNKNOW14 點(diǎn)擊下載

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