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.

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For a better experience, please enable JavaScript in your browser before proceeding. RTC k Pin 2. To participate you need to register. Just saying hello Started by MichaelaJoy Yesterday at 6: Frequency Select B to Gnd for Pin Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Single transition mode to Gnd Pin Articles Top Articles Search resources.

Welcome to our site! The timer is working normally.

HCF Datasheet – PROGRAMMABLE TIMER from SGS-Thomson Microelectronics

Started by fastline Yesterday at 8: Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. RS k Pin 4. What is my problem here?


(PDF) HCF4541 Datasheet download

I was expecting nothing on the output except maybe momentarily ,until I had started the count and it had completed. If I put the manual reset line to Gnd and power up I get a neg on the output. Then gcf4541 will see what is wired wrong. Potentiometer Questions Started by norbss Yesterday at Hcc4541 is how I am using the IC. Not Connected Pin 5. Output to LED through 1k Pin 9.

Hi dr pepper, I see what you mean mate but just tried and still same results. Click here to register now.

Problem understanding HCF4541 Programmable Timer Datasheet

Not Connected Pin Your reset input pin 6 is shown not connected to anything, it will float in this situation causing random resets due to noise. Hi to all, I am trying to build a long interval timer using the HCF IC and am not getting the results I expected, but I am not certain that I am reading the datasheet correctly. Can anyone suggest where I am going wrong?


CT 50pF Pin 3. Hcv4541 New media New comments Search media.

HCF (STMicroelectronics) – Programmable Timer, Logic

By continuing to use this site, you are consenting to our use of cookies. Auto Reset to Gnd Pin 6. The datasheet is puzzling me to say the least. If pin 6 is high then the timer is always reset. You must log in or satasheet to reply here.

Please provide a schematic of what you have beside a schematic of the circuit in the datasheet. I think I am reading dagasheet logic and timing tables correctly and that the k, k and 50 pic is all in range? Forums New posts Search forums.