
( Brand: On Semi ), ( Manufacturer Part Number: MC74HC138 ), ( Part Type: Decoder )
The MC74HC138ADG is a high-performance, 1-of-8 semi-decoder/demultiplexer in a small SOIC16 package. This device is ideal for use in various digital logic applications, such as data selection, enabling multiple outputs, or decoding binary codes.
The MC74HC138ADG is a member of the popular 74HC series of TTL (Transistor-Transistor Logic) integrated circuits, which are known for their high speed, low power consumption, and compatibility with both 5V and 3.3V power supplies. This particular part is RoHS compliant, making it an environmentally friendly choice for designers looking to minimize their impact on the environment.
The device features eight outputs, each of which can be enabled by one of eight inputs. When an input is high (logic 1), its corresponding output is also high (logic 1). When an input is low (logic 0), its corresponding output is low (logic 0). This allows the MC74HC138ADG to act as a demultiplexer, routing data from one input to one of eight outputs based on the select input.
The MC74HC138ADG also functions as a semi-decoder, allowing multiple outputs to be enabled simultaneously based on a binary code. For example, if the binary code 101 is applied to the inputs, outputs 1, 4, and 8 will all be enabled.
The device operates at a maximum supply voltage of 6.5V and has a maximum power supply current of 200mA. It has a maximum input voltage of 5.5V and a maximum input current of 10mA. The output rise and fall times are 10ns, making it suitable for high-speed applications.
In summary, the MC74HC138ADG is a versatile and powerful digital logic component that can be used in a wide range of applications. Its compact SOIC16 package makes it easy to incorporate into even the smallest of circuits, while its RoHS compliance and TTL-compatibility make it a environmentally friendly and widely-supported choice.
Pros of buying MC74HC138ADG (190 pcs semi decoder-demultiplexer single SOIC16 ROHS MC74HC138 ADG):1. High Quality: The MC74HC138ADG is a high-quality product from a reputable manufacturer, Texas Instruments. It is RoHS compliant, meaning it does not contain harmful substances like lead, mercury, and cadmium.
2. Versatility: This decoder-demultiplexer can be used in various applications due to its 1-of-8 decoding and 1-of-16 demultiplexing capabilities. It can also be used as a 4-bit to 16-line binary decoder, a 3-to-8 line decoder, or a 2-to-4 line decoder with enable input.
3. Wide Operating Voltage Range: The MC74HC138ADG can operate over a wide voltage range, from 4.5V to 18V, making it suitable for use in a variety of power supply conditions.
4. Small Size: The SOIC16 package of the MC74HC138ADG is small and compact, making it easy to integrate into a circuit board and saving on board space.
5. Availability: As a popular and widely used component, the MC74HC138ADG is readily available from various distributors, ensuring easy sourcing and timely delivery.
Cons of buying MC74HC138ADG (190 pcs semi decoder-demultiplexer single SOIC16 ROHS MC74HC138 ADG):1. Price: The MC74HC138ADG may be more expensive compared to some other decoder-demultiplexers due to its high quality and reputation.
2. Complexity: The MC74HC138ADG has multiple functions, which can make it more complex to use compared to simpler components. Requires a good understanding of digital logic to fully utilize its capabilities.
3. Power Consumption: While the MC74HC138ADG has a low power consumption for a logic gate, it might still be higher than some other components due to its multiple functions and operations.
Conclusion: The MC74HC138ADG is a high-quality and versatile decoder-demultiplexer with a wide operating voltage range and small size. While it may be more expensive and have slightly higher power consumption compared to some other components, its advantages in terms of versatility, ease of integration, and availability make it a valuable addition to any electronics toolkit.
Recommendation: If you are looking for a reliable and versatile decoder-demultiplexer for various applications, the MC74HC138ADG is a great choice. Its small size, wide voltage range, and easy availability make it a convenient component to work with, while its high quality ensures reliable performance. Its slightly higher price and power consumption compared to some other components are worth considering, but if the advantages outweigh the disadvantages for your specific application, the MC74HC138ADG is a recommended purchase.
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