MM74HC138 解码器采用先进的硅门极 CMOS 工艺制造,非常适合内存地址解码或数据路由应用。该电路都具有高抗扰度和低功耗的特点,通常与 CMOS 电路关联,但其速度可与低功耗的肖特基 TTL 逻辑相媲美。MM74HC138 有 3 个二进制选择输入(A、B 和 C)。如果启用该器件,这些输入将确定八个正常的高电平输出中哪一个将变为低电平。提供了两个低电平有效启用和一个高电平有效启用(G1、G2A#和 G2B#),以简化解码器的级联。解码器的输出可驱动 10 个低功率肖特基 TTL 等效负载,并且在功能和引脚上都等效于 74LS138。通过将二极管箝位到 VCC 和接地,可防止所有输入因静电放电而受损。
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MM74HC138M
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MM74HC138MTCX
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MM74HC138MX
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Obsolete
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Die Related Summary Data
Device: MM74HC138M
Equivalent to wafer fab process: CMOS SUB
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平均故障间隔时间/平均无故障时间(按小时计算)
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CMOS SUB
2
920154574
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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.)