N Datasheet, N PDF, N Data sheet, N manual, N pdf, N, datenblatt, Electronics N, alldatasheet, free, datasheet. Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise . 3. Ordering information. 74HC; 74HCT 4-to line decoder/ demultiplexer. Rev. 7 — 29 February Product data sheet. Table 1. Ordering .

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According to the internal logic diagram on the datasheet, the G inputs 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.

Use 4 Arduino pins for 16 outputs! Serial to Parallel Demultiplexer

Post as a guest Name. Keep in mind that my video showcases the hardware implementation of the IC before jumping into the Arduino Serial to Parallel implementation. Rather than providing only a single enable, both pins are used. As for the NAND gates, there is a function being implemented in which the gates are there to realize it. No, that would not work. That is, for an input ofthe 0 output is selected, and it is driven low. If you are looking for a different way to dataheet your outputs, or want an easier solution to your output needs, 74154b tutorial is definitely for you.

If you go through the datasheet of the IC, you will see a pinout section. Sean Lovelady May 12, at 1: I graduated in and have tried my best to share my electrical knowledge and experience with viewers and readers from all over the world. The account aided me a acceptable deal.

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EEEnthusiast May 12, at 8: This site uses Akismet to reduce spam. WhatRoughBeast 49k 2 28 I had been a little bit familiar of this your broadcast offered bright clear idea Diego recently posted… Diego.

National Semiconductor

Will someone fatasheet explain the purpose of inverting the outputs 0 through 15 as well as the use the NAND gates here? Please dataasheet upvoting those questions you found useful like this one by clicking the arrow pointing up near the answer vote count which is in turn above the checkbox you clicked to accept this question. This functionality is extremely simple to implement and can be a great alternative to shift registers discussed in one of my other tutorials. This means that you may not need the four push buttons if you only want to work with the Arduino.

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June 14th, 0 Comments. If you wanted to generate a 1 of demultiplexer, you could use 16 s looking at the 4 least significant bits, while a single would look at the 4 most significant bits, with one ouput going to each of the 74154nn 16 s. I am a new user so I didn’t know I had that power. Here is the truth table from the datasheet: This leads to possible outputs ranging from to on the 4 pins.

Notify me of new posts by email. This section will describe each pin you will need to use. And why are there 2 of them, you ask? Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Home Questions Tags Users Unanswered. You can find me on my personal site or LinkedIn! Hi, I am new to the Arduino, I have datasheey project I am working on to test wiring harness. Sign up using Facebook. If you have any questions about the implementation, feel free to post them below or on the forums.


It will indicate which output you need to toggle on the Arduino in order to drive the appropriate output of the Demultiplexer. This allows more flexibility in the logic functions available. Notify me of follow-up comments by email. Serial to Parallel Demultiplexer. I am making a Jupiter II model, 7415n want to build the fusion core for the bottom of it.

4 to 16 decoder logic diagram – Electrical Engineering Stack Exchange

June 23rd, 0 Comments. Email Required, but never shown. You can upvote more than one answer. Sorry, I just stuck with the defaults of that addon. Paul Johnosn August 1, at 5: I would like to appprentice even as you amend your website, how can i subscribe for a blog site? A demultiplexer is a great way to allow you to use more output pins for your Arduino. The active-low enable inputs allow cascading of demultiplexers over many bits. By clicking “Post Your Answer”, you acknowledge that datsheet have read our updated terms of serviceprivacy datashret and cookie policyand that your continued use of the website is subject to these policies.

Sign up or log in Sign up using Google. June 19th, 0 Comments. That is, if the outputs were active high, OR gates would perform the synthesis desired. So is it possible that both enables are hooked to a 2-input OR gate; this is just making use of the extra pins to make 24?

I was wondering if you can control multiple 74hc with the 74lsn.