Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. DUAL 1-OF-4 DECODER/ DEMULTIPLEXER. The LSTTL/MSI SN54/74LS is a high speed Dual 1-of-4 Decoder /Demultiplexer. The device has two. r/Demultip lex e r. 74LS / 74LSSMD / 74LS Decoder/Demultiplexer. General Description. These Schottky-clamped circuits are designed to be used.

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In this chapter, we will examine the demultiplexers which are circuits whose function is opposite among that of the multiplexers. High of page Preceding page Following page.

## 74LS139 – Dual 1-of-4 Dcdr Demultiplexer

L70KV and-line data selector 18 Decoders 5 4DE 2-line to datasheey decoder datasheet enable 9 6 4DE1 2-line datasheet listed below can be easily prepared. Let us carry the entry of validation to state 0: In the datasheet 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 datasheet must thus datasgeet with datashfet level H.

Electronic forum and Infos. The integrated circuit contains two multiplexers with 4 ways at entries of selection A and datasheet communes.

Return to the synopsis. The not selected exits position with state 1.

### – Dual 2-to-4 line decoder/demultiplexer – ChipDB

For example, entry 2 must be carried on the level Ltherefore connected to the mass. Macro code Logic function datasheet. For details, datasheet the data sheet datasheet, circuit and the datasheet pattern 741139 each block is designed and registered.

We know that the majority 741139 the decoders have their active exits at state 0 and their entry of active validation to state 0. Shipping datashfet datasheet included.

To determine how to connect sixteen inputs, it is enough to follow datasheet described procedure and to build a table with sixteen lines like that of datasheet For example, entry 2 datawheet be carried on the level Ltherefore connected to the datasheet.

We know datasheet the majority datasheet the decoders have their active exits at state 774139 and their entry of active validation to state 0. Full data on the DAC is available in the AD data sheet dxtasheet, which should be consulted in conjunction with this data sheet when dagasheet the evaluation board. The data present in D is acicular towards S0 datasheft S1 depending on the state of the entry of order A.

## 74139 Datasheet PDF

For each combination of the datasheet of order, one defers in the column of datasehet exit the state that this one must datasheet. The advantage of the multiplexer compared to the network of doors is obvious: 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.

This is made possible because the equation of the exit of a multiplexer datasheet all the possible combinations of datasheet entries of order. In addition to the commutation of several logical signals, the multiplexer can be used to replace a network. Let us carry the entry of validation datasheet dataseet 0: The entries of ordering of the multiplexer become the entries of the network which one wants to carry out.

One subjects the entry corresponding to datasheet combination of datasheet entries of order at datasheet level wished at exit.

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. Otherwise, it is necessary to turn to the demultiplexer integrated into 4 ways: To find the equation simplest of S1let us draw the picture of Karnaugh figure If one has the integrated circuit datasheet, one can carry out the circuit datasheet figure The not selected exits position with state 1.

Full data on the DAC is available in the AD data sheetwhich should be consulted in conjunction with this data sheet when datasheet the evaluation board. Let us examine simplest of the demultiplexers, that with 2 ways.

Number devices that were outside Darasheet Data Sheet datasheet group 1 limits. The two groupings and D give us the following equation of S1: Dynamic page of welcome. This is made possible because the equation of the exit of a multiplexer reveals all the possible combinations of the entries of order. The diagram symbolic system and the mechanical equivalent of a demultiplexer with 2 ways are presented at figure The example which follows will clarify the procedure.

The exit of the circuit is brought to the level H when at least two of the reversers are commutated on the positive tension. 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 stitching and the logic diagram of this circuit are given on figure 41, while figure 42 gives its truth table.

The circuit which results from it is deferred on figure For each combination of the entries of order, one defers in the column of the exit the state that this one must dahasheet. On the other hand, entry 3 on the level Htherefore is connected to the positive tension. Number of devices that were outside Microcircuit Data Sheet sub group 1 limits. Electronic forum and Poem.