HCF Counters/dividers. MEDIUM SPEED OPERATION: 10 MHz (Typ.) at VDD = 10V FULLY STATIC OPERATION STANDARDIZED SYMMETRICAL. HCF datasheet, HCF circuit, HCF data sheet: STMICROELECTRONICS – COUNTERS/DIVIDERS,alldatasheet, datasheet, Datasheet search site. HCF Semiconductors are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for HCF Semiconductors.

Author: Zololkree Grolkree
Country: Eritrea
Language: English (Spanish)
Genre: Sex
Published (Last): 25 February 2014
Pages: 341
PDF File Size: 15.59 Mb
ePub File Size: 19.13 Mb
ISBN: 607-2-69022-918-5
Downloads: 48087
Price: Free* [*Free Regsitration Required]
Uploader: Vuzil

Datasheets, Manuals or Parts. Smonjirez New Member Oct 6, The control pin has nothing to do with decoupling.

I’m currently working on a knight rider scanner. I don’t see the important supply hf4017 capacitors. You must log in or register to reply here. To participate you need to register.

Weird behaviour | Electronics Forum (Circuits, Projects and Microcontrollers)

Btw, I’m using a 12 – 13,5v accumulator as a powersource. How much current are you trying to draw from the pin?

Click here to register now. The problem is, I’ve got the timer to work, no problem there, can adjust the pulsing speed with a k potentiometer just mounted a LED to pin 3 with a ohm resistorno problems there.

According to the datasheets I followed it isn’t nessecary to connect pin 5. For a better experience, please enable JavaScript in your browser before proceeding. Does anyone know what I did wrong?

HCF Datasheet(PDF) – STMicroelectronics

But now I’m not even getting one chip to work right. Did you try to sequence two? Yes that was my first attempt but it failed so hard I switched back to just one chip, but it still behaves very odd. Well I haven’t ground pin 11 indeed. But, when I connect pin 3 from the timer to pin 14 from the chip and of course the 0V, reset and enable pins to the 0V linethe output is kinda weird.


If output current is close to maximum increase the value of C1 accordingly. But if you’re talking about another condensator connected to another input or something, could you please modify my circuit and post it? I think you are talking about the 0,1uF capacitor which should be connected to pin 5 control?

Thread starter Smonjirez Start date Oct 6, Articles Top Articles Search resources. I think this is what you want? Should I do that?

Can’t find any errors in my configuration. Forums New posts Search forums. Replacement Transformer Started by ncag Today at 7: Smonjirez New Member Oct 8, But, it ncf4017 totally randomly and in variating brightness also totally random.


Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Why don’t people read the datasheets?? Welcome to hf4017 site! By continuing to use this site, you are consenting to our use of cookies. This stays the same when I mount more LEDs to the other ports, it’s not how it’s supposed to be.


datahseet Attached is a proper decoupling circuitry for the NE Got part of the scheme from internet Knight Rider lights for model cars and extended it myself with another additional chip to use 8 LEDs in this “back and forth” configuration.


Hey, I’m kinda new to this forum, dstasheet I have a question. Else I still have no idea what to do. If you don’t then the circuit probably will not work properly. The datasheet for the Cmos Intersil’s ICM shows that an ordinary causes a supply current spike of mA when its output switches.

Boncuk New Member Oct 6, This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.

The circuit will work alright if you cascade the counters. The datasheet for the LM says to use a datashest. Smonjirez New Member Oct 9, Boncuk New Member Oct 9, So well, the cascading comes for later.

You datashedt have a resistor in series with the LED? Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Media New media New comments Search media.

Your CD is not connected to 0V so it cannot do anything. Potentiometer Questions Started by norbss Yesterday at