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.
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But, when I connect pin 3 from the datasjeet to pin 14 from the chip and of course the 0V, reset and enable pins to the 0V linethe output is kinda datassheet. But, it flashes totally randomly and in variating brightness also totally random. This stays the same when I mount more LEDs to the other ports, it’s not how it’s supposed to be.
Does anyone know what I did wrong?
Can’t find any errors in my configuration. Btw, I’m using a 12 – 13,5v accumulator as a powersource. You do have a resistor in series with the LED? How much current are you trying to draw from the pin?
I think this is what you want? Did you try to sequence two? Boncuk New Member Oct 6, The circuit will work alright if you cascade the counters. Well I haven’t ground pin 11 indeed. Should I do that? Yes that was my first attempt but it failed so hard I switched back to just one chip, but it still behaves very odd. So well, the cascading comes for later.
But now I’m not even getting one chip to work right. Smonjirez New Member Oct 8, Your CD is not connected to 0V so it cannot do anything.
I don’t see the important supply bypass capacitors. The datasheet for the LM says to use a 0. If you don’t then the circuit probably will not work properly. Smonjirez New Member Oct 9, I think you are talking about the 0,1uF capacitor which should be connected to pin 5 control? According to the datasheets I followed it isn’t nessecary to connect pin 5. Plus, I don’t see any problems with how my chip functions, that one just works fine imo.
HCF Datasheet pdf – COUNTERS/DIVIDERS – ST Microelectronics
But if you’re talking about another condensator connected to another input or something, could hc4017 please modify my circuit and post it? Else I still have no idea what to do. Boncuk New Member Oct 9, Hi, that is what audioguru tried to make clear to you. The control pin has nothing to do with decoupling. Attached is a proper decoupling circuitry for the NE If output current is close to maximum increase the value of C1 accordingly.
HCF Datasheet – HEX ??D?? . TYPE from SGS-Thomson Microelectronics
The datasheet for the Cmos Intersil’s ICM shows that an ordinary causes a supply current spike of mA when its output switches. The datasheet for National’s ordinary the LM shows that it needs two supply bypass capacitors to keep other ICs from crashing when the output switches. Why don’t people read the datasheets?? You must log in or register to reply here. Replacement Transformer Started by ncag Today at 7: Datasheets, Manuals or Parts.