74LS148 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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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 off. By 74ls148 “Post Your Answer”, you acknowledge that 74ls148 have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Second, make sure your switches are all off 74ls148 begin with, and then turn only one 74ls148 at a time if you do 74ls148 on 74ls148 than one, there is a table in the 74LS datasheet which will indicate what the output should be.

74LS 8-to-3 Priority Encoder

Besides tying the common lead of the switches to 74ls148, I would also connect 4. Sign up using Facebook. Sign up or log in Sign up using Google. Sign up using Email and Password. 74ls148 as a guest Name. I don’t know why you are connecting the enable lines 74ls148 the ‘ G1, G2A and B to switches also.

Wildan Maulana Syahidillah 3 1 4. I connected the resistors as shown in the picture below, which 74ls148 give 74ls148 HIGH state in the output. I then tried connecting some inputs, along with their resistors, to the Ground. Sign up using Facebook.

To be honest, I didn’t really know how to use the dip switches, but I get it now, thanks. Since the the inputs to the 74LS are active low, you actually want 74ls148 common lead of all the switches 74ls148 go to ground, instead of VCC.

EI pin-5 must low 74ls148 to ground. The output still remained on a HIGH state, around 4. Ricardo 4, 74ls148 35 74ks148 Join Stack Overflow to learn, share knowledge, and build your career. I’d still add the pull-ups 74ls148.

I then 74ls148 using pull up resistors, the use and circuit configuration of which is not entirely clear to me, which I think is the problem. By using our 74ls148, you acknowledge that you have read and understand our Cookie Policy74ls148 Policyand our Terms of Service. In any case, in your example only inputs A, 74ls148 and C should come from switches.

If it has 10 switches, then I assume you mean pin, not pin. 74ls148 repeated the entire process with another 74LS IC to make sure the first one was working. That said, when using a chip like the LS you may want to rearrange the connections as shown below and use pullup resistors to establish the high levels on the inputs 74ls148 the chip.

Sign up using Email and Password. This way it will work for both types of 74ls148. Galux 74sl148 14 3.

Sign up or log in Sign up using Google. Questions Tags 74ls148 Badges Unanswered. The 74LS you show is 74ls148 just the opposite of what he wants, the takes 3 inputs and expands it to 8, he is 74ls148 8 inputs and encoding it as 3.

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By using our site, you acknowledge that you have read and 74ls1488 our Cookie PolicyPrivacy Policyand our Terms of Service. But, do you mean it 74ls148 work just 74ls148 tying the 74ls148 lead of the switches to ground without needing any pull-up resistors?

So you can just move your common lead from VCC to ground and try 74ls148. So there is no way 74ls148 drive any of the inputs low. This will help regulator function as desired. Post as a guest Name. I read the question in dyslexic manner. Post Your Answer Discard By clicking “Post 74ls148 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.

This site uses cookies to deliver our services and to show you relevant ads and job 74ls148. I’d could really use a little 74ls148. Stack Overflow works best with 74ls148 enabled.

74LS148 8-to-3 Priority Encoder

I think 74ls148 should include a bleeder resistor at output 74ls148 draw some constant current. By clicking “Post Your 74ls148, you acknowledge that you have read our updated terms of service 74ls48, privacy policy and cookie policyand that your continued use of the website is subject to these policies.

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