74LS, 74LS Datasheet, 74LS 4 to 16 Line Decoder Datasheet, buy 74LS 3. Ordering information. 74HC; 74HCT 4-to line decoder/ demultiplexer. Rev. 7 — 29 February Product data sheet. Table 1. Ordering . Each of these 4-line-toline decoders utilizes TTL circuit- ry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the .

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A demultiplexer is a great way to allow you to use more output pins for your Arduino.

Its purpose is to take a Serial signal and convert it to a parallel one. This functionality is extremely simple to implement and can be a great alternative to shift registers discussed in one of my other tutorials.

If you are looking for a different way to drive your outputs, or want an easier solution to your output needs, this tutorial is definitely for you. Keep in mind that my video showcases the hardware implementation of the IC before jumping into 74lls154n Arduino Serial to Parallel implementation. This means that you may not need the four push buttons if you only want to work with the Arduino. If you go through the datasheet of the IC, you will see a pinout section.


This section will describe each pin you will need to use. What you need to pay attention to as well is the truth table. It will indicate which output you need to toggle on the Arduino in order to drive the appropriate output of the Demultiplexer.

(PDF) DM74LS154N Datasheet download

Make sure to fully understand what goes where and how everything is tied together internally. Here is the truth table from the datasheet: I will go through the code section by section. If you have any questions about a specific segment, leave them in a comment below or on the forums. This leads to possible outputs ranging from to on the 4 pins.

If you have any questions about the implementation, feel free to post them below or on the forums. I would like to appprentice even as you amend your website, how can i subscribe for a blog site?

The account aided me a acceptable deal. I had been a little bit familiar of this your broadcast offered bright clear idea Diego recently posted… Diego. I am making a Jupiter II model, and want to build the fusion core for the bottom of it. It requires a 32 LED chase array. Any pointers would be helpful.

Sorry, I just stuck with the defaults of that addon. Hi, I am new to the Arduino, I have a project I am working on to test wiring harness.


I was wondering if you can control multiple 74hc with the 74lsn. No, that would not work. Notify me of follow-up comments by email. Notify me 74ls15n new posts by email.

74LSN Datasheet, PDF – Alldatasheet

This site uses Akismet to reduce spam. Learn how your comment data is processed. Use 4 Arduino pins for 16 outputs! Serial to Parallel Demultiplexer.

74ls154 Datasheet Beautiful Decoder Demultiplexer 74ls154n Nos W socket Dm74ls154

I graduated in and have tried datashret best to share my electrical knowledge and experience with viewers and readers from all over the world. You can find me on my personal site or LinkedIn! June 30th, 0 Comments.

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June 18th, 1 Comment. June 14th, 0 Comments. Diego July 26, at 5: Paul Johnosn August 1, at 5: EEEnthusiast August 13, at 9: Sean Lovelady May 12, at 1: EEEnthusiast May 12, at 8: 74lx154n Sean, No, that would not work. Leave A Comment Cancel reply Comment.