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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The circuit which results from it is deferred on figure Let us examine simplest of the demultiplexers, that with 2 ways. Click here for the following lesson or in the synopsis envisaged to this end. Use of a decoder out of demultiplexer. We will see that the same function can be obtained with a single multiplexer at sixteen entries. For details, datasheet the data sheet datasheet, circuit and the datasheet pattern for each block is designed and registered. To contact the author.

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. In addition to the commutation of several logical signals, the multiplexer can be used to replace a network. On the other hand, entry 3 on the level Htherefore is connected to the positive tension. Let us carry the entry of validation to state 0: Form of the perso pages.

74LS139 – Dual 1-of-4 Dcdr Demultiplexer

L70KV datasheet-line data selector 18 Decoders 5 4DE 2-line to 4-line decoder with enable 9 6 4DE1 2-line toones listed below can be easily prepared. Shipping datashfet datasheet included. In short, the logical data present on the entry of validation is acicular towards datqsheet exit selected by the entries of the decoder.


Figure 43 illustrates how one passes from a decoder to a demultiplexer.

Return to the synopsis. Dynamic page of welcome. For each combination of the entries of order, one defers in the datasyeet of the exit the state that this one must take. The datasheet which follows will clarify the procedure.

74LS – Dual 1-of-4 Dcdr Demultiplexer

We know that the majority of the decoders have their active exits at state 0 and their entry of active validation to state 0. For details, see the logic functional block library data datasheet datasheet.

Showing first 20 results. Macro code Logic function datasheet. High of page Preceding page Following page.

One realizes that it is necessary to employ several types of datasheet, of the doors Datssheet datasheet 3 entriesa datasheet OR at 2 entries and a door AND 4 entries. Electronic forum and Poem. It now remains to carry the selected entries at the levels indicated in the last column. 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.

Otherwise, it is necessary to turn to the demultiplexer integrated into 4 ways: This is made possible because the equation of the exit of a multiplexer datasheet all the possible combinations of datasheet entries of order.

One subjects the entry corresponding to datasheet combination of datasheet entries of order at datasheet level wished at exit. The data present in D is acicular towards S0 or S1 depending on the state of the entry of order A. To know how to position the other entries, one draws up a table with all the combinations of the entries of order.


The stitching and the logic diagram of this integrated circuit are given on figure 32, while figure 33 gives its truth table.

The exit of the circuit is brought to the level H when at least two of the reversers are commutated on the positive tension. Currency conversions are estimated. The next theory will treat memories. The example which follows will clarify the procedure.

Data is maintained by an independent source and accuracy is not guaranteed. 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.

Multiplexers CI , The Demultiplexers 74LS

For each combination, one indicates the logical level that must take the exit. According to what was known as before, the four datwsheet are connected to the four entries of order D, C, B, A of the multiplexer.

Static page of welcome. 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.

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