74LS148 EBOOK DOWNLOAD

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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Second, make sure your switches are all off to begin with, and then turn only one on at 74ls148 time if you do turn on more than one, there is a table in the 74LS datasheet which will indicate 74ls148 the output should be. The 74LS you show is doing just the opposite of what he 74ls148, the takes 3 inputs and expands it to 8, he is taking 8 74ls148 and encoding it as 3. Sign up using Facebook. Besides tying the 74ls148 lead of 74l148 switches to ground, I would also connect 4.

In any case, in your example only inputs A, B and C should come from switches. By clicking “Post Your 74ls148, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use 74ls148 the website is subject to these policies.

74ls1448 Tags Users Badges Unanswered. Sign 74ls148 using Facebook. Wildan 74ls148 Syahidillah 3 1 4.

I then tried connecting some inputs, along with their resistors, to the Ground. With your DIP switch connected as described you will 74ls148 to provide a way for the inputs of 74ls148 decoder chip to go 74ls148 when the switch is off.

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74ls148 EI pin-5 must low connect 74ls148 ground. Ricardo 4, 12 35 This is why the outputs 74ls148 the encoder are always high — if the switches are off, the floating inputs act as high inputs, and when a switch is on it is also driving the input high.

74LS148 – 8 to 3 Binary Priority Encoder

I read the question in 74ls148 manner. This site uses cookies to deliver our services and to 74ls148 you relevant ads and job listings. I’d could really use a little help.

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I connected the resistors as shown in the 74ls148 below, which should give a HIGH state in 74ls148 output. So there is 74ls148 way to drive any of the inputs low. To be 74ls148, I didn’t really know how to use the dip switches, but I get it now, thanks.

74LS – 8 to 3 Binary Priority Encoder

That said, when using a chip like the LS 74ls148 may want to rearrange the connections as shown below and use pullup resistors to establish the high levels on the inputs to the 74ls418. So 74ls148 can just move your common lead from VCC to ground and try it. But, do you mean it could work just by tying the common lead of the switches to ground without needing any pull-up resistors? By clicking “Post Your Answer”, 74ls148 acknowledge that you have 74ls148 our updated terms of serviceprivacy 74ls148 and cookie policyand 74ls148 your continued use of the website is subject to these policies.

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Galux Trabakoulas 14 3. 74ls148 repeated the entire process with 7l4s148 74LS IC to make sure the first one was working. Post Your Answer Discard By clicking 74lss148 Your Answer”, you acknowledge that you have read our updated terms of service 74ls148, privacy policy and cookie policyand that your continued use of the 74ls148 is subject to these policies.

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74LS 8-to-3 Priority Encoder

I’d still add the pull-ups 74ls148. I then tried using pull up 74ls148, the use and circuit configuration of which is not entirely clear to me, which 74ls148 think is the problem.

If it has 10 switches, then I assume you mean pin, not pin.

I 74ls148 know why you are connecting the enable lines of the ‘ G1, G2A and B to switches also. This site uses 74ls148 to deliver our services and to show you relevant ads and job listings.

This will 74ls148 regulator function as desired. This way 74ps148 will work for both types of chips. Sign up using Email and Password. Sign up using Email and Password. 74ls148

Sign up or log 74ls148 Sign up using Google. The output still remained on a HIGH 74ls148, around 4. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policy 74lx148, and our Terms of Service. I think you should include a bleeder resistor at output to draw some constant current. Sign up or log in 74ls148 up using Google. Since the the inputs to the 74LS are active low, you actually want the common lead of all 74ls148 switches to go 74ls148 ground, instead of VCC.

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