HCF Programmable Timer. 16 STAGE BINARY COUNTER LOW SYMMETR. OUTPUT RESISTANCE, TYPICALLY at VDD = 15V OSCILLATOR. HCF Datasheet, HCF PDF, HCF Data sheet, HCF manual, HCF pdf, HCF, datenblatt, Electronics HCF, alldatasheet, free. Part Number: HCF, Maunfacturer: ST Microelectronics, Part Family: HC, File type: PDF, Document: Datasheet – semiconductor.

Author: Yocage Fejar
Country: Burundi
Language: English (Spanish)
Genre: Health and Food
Published (Last): 21 June 2011
Pages: 215
PDF File Size: 18.68 Mb
ePub File Size: 19.6 Mb
ISBN: 349-2-36771-175-1
Downloads: 46878
Price: Free* [*Free Regsitration Required]
Uploader: Godal

HCF datasheet & applicatoin notes – Datasheet Archive

By continuing to use this site, you are consenting to our use of cookies. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Just saying hello Started by MichaelaJoy Yesterday at 6: The datasheet is puzzling me to say the least.

Click here to register now. Output to LED through 1k Pin 9. Started by fastline Yesterday at 8: This is how I am using the IC. Welcome to our site!

Then you will see what is wired wrong. Auto Reset to Gnd Pin 6. You must log in or register to reply here.


Media New media New comments Search media. Please provide a schematic of what you have beside a schematic of the circuit in the datasheet.

(PDF) HCF4541 Datasheet download

Frequency Select B to Gnd for Pin Your reset input pin 6 is shown not connected to anything, it will float in this situation causing random resets due to noise. What is my problem here?

I was expecting nothing on the output except maybe momentarily ,until I had started the count and it had completed. Hi dr pepper, I see what you mean mate but just tried and still chf4541 results. Forums New posts Search forums.

CT 50pF Pin 3. If I put the manual reset line to Gnd and power up I get a neg on the output.

Problem understanding HCF4541 Programmable Timer Datasheet

Potentiometer Questions Started by norbss Yesterday at Can anyone suggest where I am going wrong? RS k Pin 4.

The timer is working normally. I think I am reading the logic and timing tables correctly and that the k, k and 50 pic is all in range? Hi to all, I am trying to build a long interval timer using the HCF IC and am not getting the results Adtasheet expected, but I am not certain that I am reading the datasheet correctly. This site uses cookies to help hff4541 content, tailor your experience and to keep you logged in if you register.


HCF STMicroelectronics, HCF Datasheet

Single transition mode to Gnd Pin For a better experience, please enable JavaScript in your browser before proceeding. RTC k Pin 2. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Not Connected Pin 5. Not Connected Pin To participate you need to register. Articles Top Articles Search resources. If pin 6 is high then the timer is always reset.

Subscribe US Now