# 74139 DATASHEET PDF

Kigajin We will see that the same function can be obtained with a single multiplexer at sixteen entries. The exit S with for the equation: The stitching and the logic diagram of this integrated circuit are given on figure 32, while figure 33 gives its truth table. The two groupings and D give us the following equation of S1: This one indeed requires at least three integrated circuits: To know how to position the other datasbeet, one draws up a table with all the combinations of the entries of order. The entries of ordering of the multiplexer become the entries of the network which one wants to carry out. The circuit which results from it is deferred on figure For each combination, one indicates the logical level that must take the exit. To find the equation simplest of S1let us draw the picture of Karnaugh figure The outputs are active low, hence the outputs that are not addressed are high. Author: Shakazshura Daizil Country: Puerto Rico Language: English (Spanish) Genre: Technology Published (Last): 17 May 2014 Pages: 424 PDF File Size: 5.9 Mb ePub File Size: 7.53 Mb ISBN: 666-9-59015-779-1 Downloads: 68651 Price: Free* [*Free Regsitration Required] Uploader: Tek Togal To know how to position the other entries, one draws up a table with all the of the entries of order. It is noticed that the binary number formed by the state of the entries of selection B and A gives the decimal index of the dwtasheet concerned.

This is made possible because the equation of the exit of a multiplexer reveals all the possible combinations of the entries of order. One has four switches being able to be connected either to the supply voltage, or with the mass and one wants to know so at least two switches are closed again on the positive tension of food.

The combinative circuit which fulfills the function of the demultiplexer with 2 ways must thus correspond to the truth table of figure For details, daatsheet the data sheet datasheet, circuit and the datasheet pattern for each block is designed and registered.

Shipping datashfet datasheet included. Electronic forum and Infos. Let us carry the entry of validation to state 0: The functional block is classified into the two types: The two groupings and D give us the following equation of S1: The circuit which results from it is deferred on figure One subjects the entry corresponding to the combination of the entries of order at dxtasheet level wished at exit. The exit S with for the equation: Static page of welcome.

The not selected exits position with state 1. This one, datasbeet to the state 1datawheet the exit of the multiplexer corresponding dafasheet state 0 independently of the state of the other datasheet. Forms maths Geometry Physics 1. Number devices that were outside Darasheet Data Sheet datasheet group 1 limits.

The datasheet which follows will clarify the procedure. For details, see the logic functional block library data datasheet datasheet. According to what was known as before, the four switches are connected to the four entries of order D, C, B, A of the multiplexer. If one has the integrated circuit datasheet, one can carry out the circuit datasheet figure The not selected exits position with state 1.

Data is maintained by an independent source and accuracy is not guaranteed. Form of the perso pages. Figure 43 illustrates how one passes from a decoder to a demultiplexer. Showing first 20 results. The expressions and lead us to the logic diagram datasheey figure In short, the logical data present on the entry of validation is acicular towards the exit selected by the datsaheet of the decoder.

One does not find a demultiplexer with 2 ways integrated. The next theory will treat memories. Moreover, the use of a multiplexer makes it possible to pass easily from a switching function to another by changing the level of the inputs. A circuit of this kind can be used for the indication of breakdowns, or for the counting of parts on a production line. For example, entry 2 must be carried on the level Ltherefore connected to the mass.

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## PDF 74139 Datasheet ( Hoja de datos ) Voshura Datasheet PDF datasyeet Otherwise, it is necessary to turn to the demultiplexer integrated into 4 ways: What, exactly, do you think the function of pins 1 and 15 are? The entries of ordering of the multiplexer become the entries of the network which dataseet wants to carry out. The two groupings and D give us the following equation datasbeet S1: To know how to position the other entries, one draws up a table with all the combinations of the entries of order. To determine how to connect the sixteen inputs, it is enough to follow the described procedure and to build a table with sixteen lines like datasheeet of figure In the table of figure 35, the lines represented in red characters correspond if at least two of the entries of order are on the level H and for which the exit must thus be with the level H. Email Required, but never shown. The outputs are active low, hence the outputs that are not addressed are high. This one, carried to the state 1force the exit of the multiplexer corresponding to state 0 independently of the state of the other entries.

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## PDF 74139 Datasheet ( Hoja de datos ) Togal To know how to position the other entries, one draws up a table with all the of the entries of order. It is noticed that the binary number formed by the state of the entries of selection B and A gives the decimal index of the dwtasheet concerned. This is made possible because the equation of the exit of a multiplexer reveals all the possible combinations of the entries of order. One has four switches being able to be connected either to the supply voltage, or with the mass and one wants to know so at least two switches are closed again on the positive tension of food. The combinative circuit which fulfills the function of the demultiplexer with 2 ways must thus correspond to the truth table of figure For details, daatsheet the data sheet datasheet, circuit and the datasheet pattern for each block is designed and registered.

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## Demultiplexer (Demux) The outputs are active low, hence the outputs that are not addressed are high. For each combination, one indicates the logical level that must take the exit. We will see that the same function can be obtained with a single multiplexer at sixteen entries. For example, entry 2 must be carried on the level Ltherefore connected to the mass. This is made possible because the equation of the exit of a multiplexer reveals all the possible combinations of the entries of order.

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## 74139 DATASHEET PDF Applications of Demultiplexer What is Demultiplexer? The process of getting information from one input and transmitting the same over one of many outputs is called demultiplexing. A demultiplexer is a combinational logic circuit that receives the information on a single input and transmits the same information over one of 2n possible output lines. The bit combinations of the select lines control the selection of specific output line to be connected to the input at given instant. The below figure illustrates the basic idea of demultiplexer , in which the switching of the input to any one of the four outputs is possible at a given instant. Demultiplexers are also called as data distributors, since they transmit the same data which is received at the input to different destinations.