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MM74HCT240和MM74HCT244 3态缓冲器采用先进的硅栅极CMOS技术,是通用型高速反相和同相缓冲器。 它们具有高驱动电流输出,即使在驱动大型总线电容时也能实现高速运行。 这些电路速度堪比低功率肖特基器件,同时又能保持CMOS的低功耗。 三款器件都兼容TTL输入,并具有15个LS-TTL等效输入的扇出。 MM74HCT器件专用于TTL和NMOS组件与标准CMOS器件之间的接口。 另外,这些器件也是LS-TTL器件的插件替换件,而且可用于降低现有设计的功耗。 MM74HCT240是反相缓冲器,MM74HCT244是同相缓冲器。 每个器件包含两个有源低使能(1G和2G)并且每个使能独立控制4个缓存器。 所有输入通过连接至VCC和接地的二极管加以保护,以免因静电放电而受损。
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MM74HCT240MTC
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MM74HCT240MTCX
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MM74HCT240WM
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MM74HCT240WMX
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可靠性数据
Die Related Summary Data
Device: MM74HCT240WM
Equivalent to wafer fab process: CMOS STD
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
CMOS STD
3
3597164517
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Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)