IC 74153 DATASHEET PDF

October 2, 2019   |   by admin

TL F –1. Order Number DMQB FMQB DMJ. DMW or DMN. See NS Package Number J16A N16E or W16A. Function Table. datasheet, pdf, data sheet, datasheet, data sheet, pdf, National Semiconductor, Dual 4-Line to 1-Line Data Selectors/Multiplexers. The LSTTL/MSI SN54/74LS is a very high speed Dual 4-Input. Multiplexer with common select inputs and individual enable inputs for each section.

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Datasheet, PDF – Alldatasheet

For each combination, one indicates the logical level that must take the exit. To find the datasehet simplest of S1let us draw the picture of Karnaugh daatasheet The integrated circuit 74LS contains two demultiplexers with 4 ways. Figure 43 illustrates how one passes from a decoder to a demultiplexer. In this chapter, we will examine the demultiplexers which are circuits whose function is opposite among that of the multiplexers.

One does not find a demultiplexer with 2 ways integrated.

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 that of figure The diagram symbolic system and the mechanical equivalent of a demultiplexer with 2 ways are presented at figure The circuit which results from it is deferred on figure The stitching and the logic diagram of this circuit are given on figure 41, while figure 42 gives its truth table.

To know how to position the other entries, one draws up a table with all the combinations of the entries of order. The not selected exits position with state 1. 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 exit concerned.

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The next theory will treat memories. The exit of the circuit is brought to the level H when at least two of the reversers are commutated on the positive tension. Electronic forum and Poem. In addition to the commutation of several logical signals, the multiplexer can be used to replace a network.

The entries of ordering of the multiplexer become the entries of the network which one wants to carry out. Form of the perso pages. The example which follows will clarify the procedure. Information, present on the input, is acicular towards the exit selected by the state of the entries of order. The expressions and lead us to the logic diagram of figure On the other hand, entry 3 on the level Htherefore is connected to the positive tension.

(PDF) 74153 Datasheet download

Thus to use a decoder out of demultiplexer, the entry of validation becomes the input and the entries of the decoder become the entries of ordering of the demultiplexer. This one, carried to the state 1force the exit of the multiplexer corresponding to state 0 independently of the state of the other entries.

The integrated circuit contains two multiplexers with 4 ways at entries of selection A and B communes.

Return to the synopsis. The data present in D is acicular towards S0 or S1 depending on the state of the entry of order A. If integrated logical doors are used, one obtains the circuit represented on figure Otherwise, it is necessary to turn to the demultiplexer integrated into 4 ways: Since all the combinations of the entries A, B, C and D are present in this equation, we can fulfill with this multiplexer any switching function comprising the same number of entries, that is to say 4.

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Static page of welcome. Electronic forum and Infos.

It now remains to carry the selected entries at the levels indicated in the last column. In short, the logical data present on the entry of validation is acicular towards the exit selected by the entries of the decoder.

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.

Let us examine simplest of the demultiplexers, that with 2 ways. 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.