74AHC138 Datasheet, PDF
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74AHC138 Part Attribute
- Description The 74AHC138 is is an advanced high speed CMOS device. The device accepts a three bit binary weighted address on input pins A0, A1 and A2 and when enab°C will porduce one active low output with the remaing seven being high. There are two active LOW enable inputs 1 and 2, and one active HIGH enable input E3. The disab°C device state results in all outputs being high. The enable state occurs with 1 and 2 asserted low and E3 asserted high. The multiple enable lines allow for the parallel expansion of decoders to create 4-to-16 line versions with no additional parts and 5-to-32 versions with the addition of a single inverter.
- Part No. 74AHC138
- Manufacturer 达尔-Diodes
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