The MM74HC138N can operate up to 25 MHz, but this frequency may vary depending on the specific application and operating conditions.
The MM74HC138N requires a single 2V to 6V power supply, and it's essential to decouple the power supply with a 0.1uF capacitor to minimize noise and ensure stable operation.
The MM74HC138N can sink up to 25mA and source up to 20mA per output, but it's recommended to limit the current to 10mA per output to ensure reliable operation.
The enable inputs (E1, E2, E3) must be connected to a valid logic level (either VCC or GND) to enable or disable the decoder. Leaving these inputs floating can cause unpredictable behavior.
The propagation delay of the MM74HC138N is typically around 10ns to 20ns, depending on the operating conditions and output load.
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MM74HC138N Overview
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