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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Please provide a schematic of what datasneet have beside a schematic of the circuit in the datasheet. The timer is working normally. Click here to register now. Forums New posts Search forums. Hi to hcg4541, 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.
Hi dr pepper, I see what you mean mate but just tried and still same results.
HCF Datasheet, PDF – Alldatasheet
Output to LED through 1k Pin 9. Not Connected Pin 5.
Can anyone suggest where I am going wrong? CT 50pF Pin 3. Media New media New comments Search media.
The datasheet is puzzling me to say the least. RS k Pin 4. Started by fastline Yesterday at 8: I think I am reading the logic and timing tables correctly and that the k, k and 50 pic is all in range? To participate you need to register.
Just saying hello Started by MichaelaJoy Yesterday at 6: Welcome to our site! Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Auto Reset to Gnd Pin 6.
(PDF) HCF4541 Datasheet download
What is my problem here? Potentiometer Questions Started by norbss Yesterday at Not Connected Pin Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.
Problem understanding HCF4541 Programmable Timer Datasheet
Single transition mode to Gnd Pin If I put the manual reset line to Gnd and power up I get datashewt neg on the output. Articles Top Articles Search resources. RTC k Pin 2.
Then you will see what is wired wrong. Your reset input pin 6 is shown not connected to anything, it will float in this situation causing random resets due to noise.