Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Decoder/Demultiplexer. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may.

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SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation datashset personal injury or death may occur. Sign up using Facebook.

Datasheet «74LS139»

Each half of the LS generates all four minterms of two variables. 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. In your first paragraph you say that a demux requires: In fact the image you show from the datasheet explains this in the “Pin Names” section just below the connection diagram.

SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product datsaheet circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. So, I was confused. Wouter van Ooijen Each half of the LS can be used as a function generator providing datadheet four minterms of two variables.


Your explanation resolved my confusion. The outputs are active low, hence the outputs that are not addressed are high. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts.

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74LS139 – Dual 1-of-4 Dcdr Demultiplexer

Here is the link to take a look at datasheet. Black Mamba 2. Sign up or log in Sign up using Google. Vatasheet I will accept it. Search the history of over billion web pages on the Internet.

Email Required, but never shown. I just better understood the concept from you than from Tom’s answer.

What, exactly, do you think the function of pins 1 and 15 are? Not more than one output should be shorted at a time, nor 7ls139 more than 1 second. The E enable line can be used as active low input. In the logic diagram of the 74LS, you have exactly that.

74LS Datasheet(PDF) – Motorola, Inc

So, I compared it to Demux’s Enable input. Post datasheeet a guest Name. After that I have taken a look at the datasheet of 1: Thanks for simplifying the answer.

datasgeet Post Your Answer Discard By clicking “Post Your Daatasheet, 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. Each decoder has an active LOW Enable input which can be used as a data input for a 4-output demultiplexer.


There is no select lines. VIEWP n nr 0. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against dataasheet claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part.

Home Questions Tags Users Unanswered. These four minterms are useful in some applications, replacing multiple gate functions as shown in Fig. Before taking a look at demux, I actually took a look at mux’s datasheet, where I saw an Enable input, to enable or disable mux. The 74ps139 has two independent decoders, each accepting two inputs and providing four mutually exclusive active LOW Outputs.

Thanks for the answer. Full text of ” IC Datasheet: Dahasheet using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.