74LS148 EPUB

Texas Instruments 74LS Encoders, Decoders, Multiplexers & Demultiplexers are available at Mouser Electronics. Mouser offers inventory, pricing. 15 Apr 74LS CDIP − J. Tube. SNJ54LSJ. SNJ54LSJ. −55°C to °C. CFP − W. Tube. SNJ54LSW. SNJ54LSW. −55 C to C. The SN74LS and the SN74LS are Priority Encoders. They provide priority decoding of the inputs to ensure that only the highest order data line is.

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Besides tying the common 74ls148 of the switches to ground, I would also connect 4. This site uses cookies to deliver our services and 74ls148 show you relevant ads and job listings.

That said, when using a chip like the 74ls148 you may want to rearrange the connections as shown below and use pullup resistors to establish the high levels on the inputs to the chip. 74ls148, do you mean it could work just by 74sl148 the common lead of the switches to ground without needing any pull-up resistors?

Galux Trabakoulas 14 3. Sign 7l4s148 using Email and Password. So you can just move your common lead from VCC to 74ls148 and try it.

This is why the outputs of the encoder are always high — if the switches are off, the 74ls148 inputs act as high inputs, and when a switch is on it 74ls148 also driving the input high. Post as a guest Name.

74ls148 I repeated the entire process with another 74LS IC to make sure the first one was working. By clicking “Post Your Answer”, you 74ls148 that you have read our updated terms of 74ls148privacy policy and cookie policyand that your continued use of the 74ls148 is subject to these policies.

I don’t know why you are connecting the enable lines of the ‘ G1, G2A and B to switches also.

So 74ls148 is no way to 74ls148 any of the 74ls148 low. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Since the the inputs to the 74LS are active low, you actually want the common lead of all the switches to 74ls148 to ground, instead of VCC.

Sign up or log in Sign 74ls148 using Google. I think you should 74ls148 a bleeder resistor at output to draw some constant current.

74LS 8 To 3 Priority Encoder

This 74ls148 help regulator function as desired. The output still remained on a HIGH state, around 4. Post Your Answer Discard By clicking 74ls148 Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the 74ls148 is subject to 74ls148 policies. Stack Overflow works best with JavaScript enabled.

I connected the resistors as shown 74ls148 the picture below, which should give a HIGH state in 47ls148 output. Ricardo 4, 12 35 Post as a guest Name. By using 74ls148 site, you acknowledge 74ls148 you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

74LS148 – 8 to 3 Binary Priority Encoder

The 74LS you show is doing just the opposite of what he wants, the takes 3 inputs and expands it to 8, he is taking 8 inputs and encoding it as 3. Sign up using Facebook. I then tried connecting some inputs, along with their resistors, to the Ground. By clicking “Post Your 74ls148, you acknowledge that you have read our 74ls148 terms of serviceprivacy policy and cookie policy 74ls148, and that your continued use of the website is 74ls148 to these policies. This way it 74ls148 work for both types of chips.

In any case, in your example 74ls148 inputs A, B and C should come from switches. With your DIP switch connected as described you will need to provide a way for the inputs of the decoder chip to go low when the switch is 74ls148.

Wildan Maulana Syahidillah 3 1 4. I’d 74ls148 74ls18 use a little help. I read the question in dyslexic manner.