74141 DATASHEET PDF

Remenber that te russian types are marked like this orange! The russian types have high "off" voltage approx V , so the efficiency is much better, and the "Blue Spot" problem can not occur e. Just some words: The 2. On the right side you also see 10 transistors which only have the job to drive the LEDs and the inputs of the controller.

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Taule On the right side you also see 10 transistors which only have the job to drive the LEDs and the inputs of the controller.

Moreover I have a good control with the tube whether the test- IC really works. The ZM tube is driven with 2mA current. I also found out what I wrote above in the section about the russian tubes.

I had to change my circuit to this second revision, that works with a ZM. Check the different truth- charts!!!

Remenber that te russian types are marked like this orange! When holding the button for longer than one second you come back to the free- running mode. My other projects took away a datasheeh of time, so I decided to give it to a friend of mine to do the coding.

The V plus tube and resistors with the voltage dividers make it possible to detect a too high leakage current in case dagasheet IC is defective. Truth Table for theand A Chip. The ones I have I will use for my next projects.

All are tested now. You only have to put in the test-IC. The ATmega is totally cool!!! So I added a IC. I will use it for all my clocks in the next future because you need no other parts around it!

Ok, lets go to the Sketch I made for my tester.

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74141 Datasheet

Taule On the right side you also see 10 transistors which only have the job to drive the LEDs and the inputs of the controller. Moreover I have a good control with the tube whether the test- IC really works. The ZM tube is driven with 2mA current. I also found out what I wrote above in the section about the russian tubes. I had to change my circuit to this second revision, that works with a ZM. Check the different truth- charts!!!

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74141 DATASHEET PDF

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