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SN74CB3Q3305

SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305

3.3V、1:1 (SPST)、2 通道 FET 總線開關(guān)（高電平有效）; ? 高帶寬數(shù)據(jù)路徑（高達(dá) 500MHz）\n \n? 可耐受 5V 電壓并支持器件上電或斷電的 I/O\n? 在運行范圍內(nèi)具有平緩的低通態(tài)電阻 (ron) 特性 （ron 典型值 = 3?）\n? 數(shù)據(jù) I/O 端口支持超出電源電壓范圍的輸入電壓 \n? 3.3V VCC 時，開關(guān)范圍為 0 至 5V\n? 2.5V VCC 時，開關(guān)范圍為 0 至 3.3V\n \n? 具有接近零傳播延遲的雙向數(shù)據(jù)流\n? 低輸入和輸出電容可更大程度減小負(fù)載和信號失真 （Cio(OFF) 典型值 = 3.5pF）\n? 快速開關(guān)頻率（fOE 最大值 = 20MHz）\n? 數(shù)據(jù)與控制輸入提供下沖鉗位二極管\n? 低功耗（ICC 典型值 = 0.25mA）\n? VCC 工作范圍為 2.3V 至 3.6V\n? 數(shù)據(jù) I/O 支持 0 至 5V 信號電平（0.8V、1.2V、1.5V、1.8V、2.5V、3.3V 和 5V）\n? 控制輸入可由 TTL 或 5V/3.3V CMOS 輸出驅(qū)動\n? Ioff 支持局部斷電模式運行\(zhòng)n? 閂鎖性能超過 100mA，符合 JESD 78 II 類規(guī)范\n \n有關(guān) CB3Q 系列器件性能特性的更多信息，請參閱 TI 應(yīng)用報告《CBT-C、CB3T 和 CB3Q 信號開關(guān)系列》，SCDA008。;

SN74CB3Q3305 器件是一款高帶寬 FET 總線開關(guān)，此開關(guān)利用一個電荷泵來提升通道晶體管的柵極電壓，從而提供一個平緩的低通態(tài)電阻 (ron)。平緩的低通態(tài)電阻可實現(xiàn)非常短的傳播延遲，并且支持在數(shù)據(jù)輸入/輸出 (I/O) 端口上開關(guān)超出電源電壓范圍的輸入電壓。該器件還具有低的數(shù)據(jù) I/O 電容，以更大限度地減少數(shù)據(jù)總線上的容性負(fù)載和信號失真。SN74CB3Q3305 器件專為支持高帶寬應(yīng)用而設(shè)計，提供優(yōu)化的接口解決方案，非常適合寬帶通信、網(wǎng)絡(luò)和數(shù)據(jù)密集型計算系統(tǒng)。\n\n該器件完全符合使用 Ioff 的部分?jǐn)嚯姂?yīng)用的規(guī)范要求。Ioff 電路可防止在器件斷電時電流回流對器件造成損壞。該器件可在關(guān)閉時提供隔離。\n\n為確保在加電或斷電期間處于高阻抗?fàn)顟B(tài)，應(yīng)將 OE 通過下拉電阻器接地；該電阻器的最小值取決于驅(qū)動器的拉電流能力。

SN74CB3Q3305

DUAL FET BUS SWITCH 2.5V/3.3V LOW VOLTAGE HIGH BANDWIDTH BUS SWITCH

SN74CB3Q3305

DUAL FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH

SN74CB3Q3305DCUR

絲印：GARQ；Package：VSSOP；SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305DCUR.Z

SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305PW

絲?。?a target="_blank" title="Marking" href="/bu305/marking.html">BU305；Package：TSSOP；SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305PWR

絲印：BU305；Package：TSSOP；SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305PWR.Z

SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching

SN74CB3Q3305PWRE4

SN74CB3Q3305 Dual FET Bus Switch 2.5-V or 3.3-V Low-Voltage High-Bandwidth Bus Switch

1Features ?High-bandwidthdatapath(upto500MHz)1 ?5-VtolerantI/Oswithdevicepoweredupor powereddown ?LowandflatON-stateresistance(ron) characteristicsoveroperatingrange (ron=3Ωtypical) ?SupportsinputvoltagebeyondsupplyondataI/O ports –0to5Vswitching