Note The ”Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaran- teed The device should not be operated at. 74LS20 datasheet, 74LS20 pdf, 74LS20 data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Dual 4-Input NAND Gate. 74LS Absolute Maximum Ratings(Note 1). Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be.
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Have I wired this wrong?
74LS20 데이터시트(PDF) – National Semiconductor (TI)
I wonder if there is a rogue datasheet somewhere which has mixed that unusual “W” package pinout, with the “N” package pinout? Arduino Pro Mini PeterBennett – Yes, agreed. Home Questions Tags Users Unanswered. I’m using a quad input due to lack of components. A couple more points: Peter – Absolutely agreed.
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Sign up using Facebook. 7ls20 in a “W” ceramic flat-pack package, the uses pin 11 as Gnd: I have this circuit: That would be correct for an unusual package military temperature version of in a ceramic flat-pack but is not correct for a standard 74LS20 in “N” package plastic DIP like yours. Engineered in the Philippines.
74LS20 Datasheet(PDF) – Hitachi Semiconductor
Arduino basics with Tinker Danica. However, there is one clear bug: Popular Products Tinkduino Leo. Post as a guest Name.
Your LED will be drawing more than 0. This won’t be doing the IC any good, although I hope that permanent damage won’t happen.
I’ve tried the same circuit with a couple of IC’s in case one was faulty, but the same behavior is exhibited. There is no connection from IC pin 7 to Gnd 0V.
74LS20 – Dual 4 Input NAND Gate
Our office is open: As already commented by John Da real schematic would definitely help readers. The administrators are still migrating contents to our new home. The problem I see is not so much that pin 11 is connected to Gnd; but 74ls220 pin 7 is not connected to Gnd.
A real schematic rather than a photo of your breadboard might help you get an answer to your question. Sign up using Email and Password.
(PDF) 74LS20 Datasheet download
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