Allicdata Part #: | DM74ALS137N-ND |
Manufacturer Part#: |
DM74ALS137N |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | DECODER/DEMUX 3-OF-8 16DIP |
More Detail: | Decoder/Demultiplexer 1 x 3:8 16-DIP |
DataSheet: | DM74ALS137N Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | 74ALS |
Packaging: | Tube |
Part Status: | Obsolete |
Type: | Decoder/Demultiplexer |
Circuit: | 1 x 3:8 |
Independent Circuits: | 1 |
Current - Output High, Low: | 400µA, 8mA |
Voltage Supply Source: | Single Supply |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | 0°C ~ 70°C |
Mounting Type: | Through Hole |
Package / Case: | 16-DIP (0.300", 7.62mm) |
Supplier Device Package: | 16-DIP |
Base Part Number: | 74ALS137 |
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Logic circuits are used in many engineering applications, and their basic principles are used in areas such as information processing, communication, and control. The different elements of a logic circuitry, such as multiplexers, decoders, and signal switches, are used to provide a variety of solutions in these applications. One of the most common types of logic circuitry, the DM74ALS137N, is a unique design in that it applies the principles of multiplexing and decoder in a single circuit. This article will discuss the application field and working principle of the DM74ALS137N, and how it is used in modern electronics.
Functioning as both a multiplexer and decoder, the DM74ALS137N is a logic device used primarily for data and address decoding. The device has two groupings of inputs and outputs, where the first group contains 14 inputs (labeled A0, A1, and so forth) and the second group contains 4 output pins (labeled O0, O1, and so forth). When a particular combination of the signals from the first group is detected, the corresponding output in the second group is activated. The device can be thought of as an electronic switch that changes which output is activated based on which input signals are present.
At its core, the DM74ALS137N realizes this functionality through a combination of both multiplexing and decoding. Specifically, the device uses a technique known as time-division multiplexing to send each input signal directly to all four output pins, using different timing to control which output is triggered by each input. For example, if the input A0 is activated, the output O0 is triggered first. This is then followed by output O1, O2, and finally O3, which each turn on with a small delay after the preceding one. This multiplexing process allows the device to select the correct output for any given input combination.
The device also performs decoding operations, which serve to ensure only one output is active at any given time. Specifically, when two or more inputs are activated simultaneously, the device uses a priority system to select which output should be active. The input with the highest priority is selected first, and the remaining inputs are used to deselect any other outputs that may have been active. In this way, the device can tell apart different combinations of the same inputs and select the right output.
The DM74ALS137N has a variety of applications in electronics due to its unique combination of multiplexing and decoding operations. The device is commonly used in areas such as memory address decoding, data routing, and integrated circuit testing. Additionally, it is used in embedded systems to control output pins based on input signals from sensors, switches, and other sources. Owing to its small size, low power consumption, and ease of use, the DM74ALS137N is a popular choice for embedded system designers.
In conclusion, the DM74ALS137N is a logic device capable of performing both multiplexing and decoding operations, thereby providing a versatile solution in a variety of electronic applications. By using a unique combination of timing and priority selection, the device can control which of its four outputs are active based on which of the fourteen inputs are present. As a result, the DM74ALS137N is used in memory address decoding, data routing, embedded systems, and integrated circuit testing.
The specific data is subject to PDF, and the above content is for reference
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