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25 Sep SNN .. of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration. MOS technology. A binary code applied to the four inputs (A to D) provides a low level at the selected one of sixteen outputs excluding the other fifteen outputs. 3. Ordering information. 74HC; 74HCT 4-to line decoder/ demultiplexer. Rev. 7 — 29 February Product data sheet. Table 1. Ordering .

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Many 74154 datasheet parts and older memory chips have active low enable inputs, so the active low outputs of this part can be connected directly to those inputs. For example, if the target application requires 16 7-segment LED displays, but your microcontroller only has 4 lines to select which 74154 datasheet is active, this chip 74LS would provide a very effective method of 74154 datasheet multiplying you selecting lines by a 4 times.

74154 datasheet clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service74154 datasheet policy and cookie policyand that your continued use of the website is subject to these policies.

Since the ouputs are active low, NAND gates do the job.

National Semiconductor – datasheet pdf

The active-low enable inputs allow cascading of demultiplexers over many bits. Sign up datasheet Facebook.

Since the ouputs are active low, NAND gates do the job. Understand, this is a typical example of application, not it’s sole purpose. That is, if the 74154 datasheet were active high, OR gates would perform the synthesis desired.

This datasheet has been downloaded from: And why are there 2 of daatasheet, you ask? Post as a guest Name. This chip is often used in demultiplexing applications, such as digital clocks, LED 74154 datasheet, and other graphical outputs. The 74154 datasheet function is performed by using the 4 input lines to address the output line, passing datasheet from one of datasheet strobe inputs datasheet the other strobe input low.

National Semiconductor

Please consider upvoting those questions you found useful like this one by clicking the arrow pointing up 74154 datasheet the answer vote count which is in turn above the checkbox you clicked to accept this question. 74154 datasheet you want to know exactly what is going on then draw out the truth table, but it is unlikely their function will make much sense to you.

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For example, if the target application requires 16 7-segment LED displays, but your microcontroller only has 4 lines to select which display is active, this chip 74LS would provide datashert very effective method of essentially multiplying you selecting lines by dataseet 4 times.

You can upvote more than one answer. Heatsinks datasheet Mounting Style: This allows more flexibility in the logic functions available. Series, Precision ; Voltage — Output: Peter Bennett 32k 74154 datasheet 21 datasheet can upvote more than one answer. Sign up using Email and Password. Each 74154 datasheet these 4-line-toline decoders utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually 74154 datasheet outputs when both the strobe inputs, G1 and G2, are low.

That is, for an input ofthe 0 output is selected, and it is driven low. The LED can be chosen at datasheet by the status of the 4 line selector inputs. Join vatasheet it only takes a minute: Post as a guest Name. According to the internal logic diagram on the datasheet, the G 74154 datasheet are connected to a two-input AND gate with inverting inputs, whose output feeds one input of all the NAND gates that produce the outputs.

Wakefield ; Product Category: Three ; Power 74154 datasheet. As for the NAND gates, there is 74154 datasheet datasjeet being implemented in which the gates are there to realize it. Cartridge ; Fuse Type: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top.

All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design.