74LS148 PDF

74LS, 74LS Datasheet, 74LS pdf, buy 74LS, 74LS 8 to 3 Priority Encoder. 74LS, 74LS 8-to-3 Priority Encoder, 74LSxx Low Power Schottky Series. Texas Instruments 74LS Encoders, Decoders, Multiplexers & Demultiplexers are available at Mouser Electronics. Mouser offers inventory, pricing.

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Ricardo 4, 12 37 Your cart has been saved and will be available when you login next time. The output still remained on a HIGH state, around 4. Your account information matches our records. Please enter Email Address. This is why the outputs of 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.

How would you like to proceed? Sorry, your details do not match our records. Since the the inputs to the 74LS are active low, you actually want the common lead of all the switches to go to ground, instead of VCC.

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The warranty period is 90 days for new, refurbished and repaired parts, and 30 days for used parts, starting on the delivery date of the part. I then tried connecting some inputs, along with their resistors, to the Ground. In any case, in your example 47ls148 inputs A, B and C should come from switches.

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Wildan Maulana Syahidillah 3 1 4. With your DIP switch connected as described you will need to provide 7l4s148 way for the inputs of the decoder chip to go low when the switch is off. This way it will work for both types of chips.

Join Stack Overflow to learn, share knowledge, and build your career. EI pin-5 must low connect to ground. Please complete the order processing to add an item to the cart. Stack Overflow works 74ls184 with JavaScript enabled. I’d still add the pull-ups though. I read the question in dyslexic manner.

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Sign up using Facebook. Do you want to continue? Thank you for initiating the registration process. Re-enter your account number, zipcode to try again. The Pro Rata warranty allowance is calculated as:. So you can just move your common lead from VCC to ground and try it. Please enter Email Address Next. Please Enter Valid Text. Post as a guest Name.

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74LS148 – 74LS148 8-to-3 Priority Encoder

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 to the chip. 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.

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