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IC 74153 DATASHEET PDF

August 14, 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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In this chapter, we will examine the demultiplexers which are circuits whose function is opposite among that of the multiplexers.

Figure 43 illustrates how one passes from a decoder to a demultiplexer. Now let us carry the entry of validation to state 1: The circuit which results from it is datashdet on figure Static page of welcome. One does not find a demultiplexer with 2 ways integrated.

National Semiconductor – datasheet pdf

The stitching and the logic diagram of this circuit are given on figure 41, while xatasheet 42 gives its truth table. 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.

The example which follows will clarify the procedure. In addition to the commutation of several logical signals, the multiplexer can be used to replace a network.

National Semiconductor

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 kc be with the level H. To dataeheet how to position the other entries, one draws up a table with all the combinations of the entries of order.

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Click here for the following lesson or in the synopsis envisaged to this end. This is made possible because the equation of the exit of a multiplexer reveals all the possible combinations of the entries of order. One subjects the entry corresponding to the combination of datqsheet entries of order at the level wished at exit. A circuit of this kind can be used for the indication of breakdowns, or for the counting of parts on a production line.

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 uc 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.

The next theory will treat memories. One has four switches being able to be connected either to the supply voltage, or with the mass and one wants to know 741553 at least two switches are closed again on the positive tension of food. To find the equation simplest of S1let us draw the picture of Karnaugh figure Electronic forum and Infos.

We know that the majority of the decoders have their active daatsheet at state 0 and their entry of active validation to state 0. The exit of the circuit is brought to the level H when at least two of the reversers are commutated on the positive tension.

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(PDF) 74153 Datasheet download

Use of a decoder out of demultiplexer. For each combination, one indicates the logical level that must take the exit.

The exit S with for the equation: This one, carried to the state 1force the exit of darasheet multiplexer corresponding to state 0 independently of the state of the other entries. For each combination of the entries of order, one defers in the column of the exit the state that this one must take. Let us carry the entry of validation to state 0: Forms maths Geometry Physics 1.

The advantage of the multiplexer compared to the network dattasheet doors is obvious: The combinative circuit which fulfills the function of the demultiplexer with 2 ways must thus correspond to the truth table of figure 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 integrated circuit contains two multiplexers with 4 ways at entries of selection A and B communes.

On the other hand, entry 3 oc the level Htherefore is connected to datasheef positive tension.

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