An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters . HCF datasheet, HCF circuit, HCF data sheet: STMICROELECTRONICS – QUAD BILATERAL SWITCH FOR TRANSMISSION OR. HCF Datasheet, HCF PDF, HCF Data sheet, HCF manual, HCF pdf, HCF, datenblatt, Electronics HCF, alldatasheet, free.

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The pinout of the chip is shown below. I think they are actually pretty rugged these days, but it seems like the process that they are using for ICs like this are getting more intolerant of signal quality on the control pins. Hccf4066 wish it wasn’t, but that’s not been my experience – even in slow routing logic switch circuits.

HCF Datasheet PDF – STMicroelectronics

In this circuit, we will show the basic functionality of the chip by passing analog signals through 2 of the switches by digital control. May 28, The most common waveform is a sine wave.

It may have been damaged by static electricity. My vote is for a bad solder joint, a solder bridge, or the PCB being damaged from the process of removing the old chip. If so, I wonder if that might be a factor. Try hcf4066 different one in its place and see what happens. When unpressed, the pushbutton has the signal LOW by default. Selectors Simulators and Models.

This is image of IC this is the pictures of both Ic So you will see that if you press down the pushbutton with an analog signal or digital signal at the input, that same signal will appear at hte output.


With the control switch HIGH, then the switch closes and there can be an output. And you can’t see if it has been damaged by static, either. Paul Marossy Hero Member Posts: So by a HIGH digital signal fed into the control terminal, we can pass an datasueet signal from the input terminal to the output terminal of the switch.

ST Microelectronics

Each switch has an input, output, and control terminal. A bilateral switch is so called because the switch can operate forward or reverse. Originally posted by Paul Marossy Really? That’s not to say that the TI ICs will work here or that other issues might vatasheet exist, but if one brand if does not work and you have eliminated everything else – it’s not crazy to try another brand. Product is in volume production. No commitment taken to design or produce NRND: Please contact our sales support for information on specific devices.

When pressed down, the pushbutton makes the signal HIGH. If I use the mono jack all signal is Normal. First, to power thewe connect 5V of power to V DDpin 14, and we connect the ground pin, pin 7, to ground.


In order for signals to pass through from the input side to the output side, the control or enable terminal must be HIGH. As the quad term implies, the is composed up of 4 switches. That would be dztasheet first type of IC chip that I have ever run across that was quirky like that.


You can view the control terminal as the signal which closes the switch so that the input signal can cross over ncf4066 the output. Media Subscription Media Contacts. That was not the case a decade ago, but they had other problems back then.

I don’t know if a replacement board is available, you’d have to talk to Parker customer service about that.

General terms and conditions. No availability reported, please contact our Sales office.

I wonder what might have happened right before this problem started – things like the wrong polarity on a battery can mess up a lot of things.

IoT for Smart Things. Not Recommended for New Design. Originally posted by corns cdbcm is the original of dimarzio,s pre amp for midyfly above and hcf Is the subtitute for cdbcm but “it doesnt work” is that matter? Been there, done that. ST Code of Conduct Blog. Product is under characterization. As long as it is a CD, it should work.

CMOS devices daatsheet be damaged by static electricity simply by touching them out of circuit with your bare hands, and it gets worse from there. The datasheet for the can be found at the following link: A CD is a CD It’s very easy to damage some PCBs and I’ve had cold solder joints that look like they should be great.