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I dont prefer voltage divider with resistors.Because there will be always a current even if your TTL dont use 5V.Thus if you use a battery the life of battery will be short!
Any electronic book of basic electronics has all the ways VoidMain is suggesting! What is more you can build protection circuits only by reading some chapters ahead! Try Sedra /Smith Microelectronics Circuits, or any spice library. That is if you want to build something for educational reasons- which I thing you shoyld- before using any IC! Good luck!
Any electronic book of basic electronics has all the ways VoidMain is suggesting! What is more you can build protection circuits only by reading some chapters ahead! Try Sedra /Smith Microelectronics Circuits, or any spice library. That is if you want to build something for educational reasons- which I thing you shoyld- before using any IC! Good luck!
No problem with modularization klugkopf but I thought that he wants this transaction from 12V to TTL just for educational reasons.Otherwise there would have been a more specific request on the matter! Modularization - if I understand well your meaning - is for people well understanding electronics and seeking fast solutions to their circuits!
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