74LS47D DATASHEET PDF

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I was trying to interface a seven-segment-display with Atmega16 chip with its decoder 74ls47 , and increase the value it displays using ISR. Learn more. Asked 1 year, 9 months ago. Active 1 year, 9 months ago.

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Latest Projects Education. Homework Help How does a 74LS47 works basically? Home Forums Education Homework Help. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. How does a 74LS47 works basically? Search Forums New Posts. Scroll to continue with content.

A very general one. Jony Joined Feb 17, 5, Last edited: Feb 8, Papabravo Joined Feb 24, 13, Each segemnt of the display has associated with it a Boolean equation that determines weather the segment is on or off.

For a single digit there will be seven equations, with each equation using four inputs. Here is the important point. A decoder is a combinatorial circuit with NO memory elements. BillB Joined Feb 28, 2, If you look at the datasheet provided here Hope this helps. What's the difference between 74ls47 and ic?? Have you looked at the spec sheets of each? No better way to learn! No doubt that this is a resurrection! Post a new thread if you need a question answered, not highjack a two year old one.

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How does a 74LS47 works basically?

Hi nofnof! Note 7: The blanking input BI must be open or held at a high logic level when output functions 0 through 15 are desired. The ripple-blanking input RBI must be open or high if blanking of a decimal zero is not desired. Note 8: When a low logic level is applied directly to the blanking input BI , all segment outputs are high regardless of the level of any other input. The truth function table in the datasheet will set you free. First of all

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74LS47 SMD / SN74LS47D

Latest Projects Education. Homework Help How does a 74LS47 works basically? Home Forums Education Homework Help. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. How does a 74LS47 works basically? Search Forums New Posts.

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74LS47 Decoder/Driver. Datasheet pdf. Equivalent

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