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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Paul Marossy Hero Member Posts: I think the TI parts always worked, but that was after trying others that seemed to work OK in other circuits when I checked a few. Marketing proposal for customer feedback. V DD and ground, pins 14 and 7, are the power pins.

This is image of IC this is the pictures of catasheet Ic Please login or register.

(PDF) HCF4066 Datasheet download

I don’t know if a replacement board is available, you’d have to talk to Parker customer service about that. CMOS devices can be damaged by static electricity simply by touching them out of circuit with your bare hands, and it gets worse from there. Product is under characterization. It doesn’t matter who made it, or if there is a different “code” on it.

I have a problem with my Midifly series.

They are not as rugged as something like catasheet opamp. This means that either side of the switch can be used as the input. As long as it is a CD, it should work. Product is in volume production only to support customers ongoing production. A bilateral switch acts as a single pole, single throw switch.



For this circuit, we are only going to be using 2 of the 4 switches. May 26, One place it can be obtained is at Taydaelectronics at the following link: Support Center Video Center. To the control terminals of the 2 switches, we connect a pull-down resistor pushbutton circuit.

Product is in design stage Target: First, to power thewe connect 5V of power to V DDpin 14, and we connect the ground pin, pin 7, to ground. In theory, it should be working fine. That’s not to say that the TI ICs will work here or that other issues might not exist, but if one brand if does not work and you have eliminated everything else – it’s not crazy to try another brand.

In this circuit, we will show the basic functionality of the chip by passing analog signals through 2 of the switches by hcf466 control. Media Subscription Media Contacts. 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. Not Recommended for New Design.

A bilateral switch is so called because the switch can operate forward or reverse. I would either have third party look at it to determine if the repair work is at fault or not, or see if you can get a new circuitboard. The really functions as an analog switch. So current can flow in one direction and the other direction, depending on which side is the input. Communications Equipment, Computers and Peripherals.

May 28, Selectors Simulators and Models. Support Center Complete list and gateway to support services and resource pools.


For me it was only a pain in battery powered circuits since voltage varies a little and current is a concern – I had to put some actual thought into what I was doing. Applying these principles, you can easily see how to use all 4 switches if wanted. As the quad term implies, the is composed up of 4 switches. Been there, done that. IoT for Smart Things. If so, I wonder if that might be a factor. No availability reported, please contact our Sales office.

HCF Datasheet(PDF) – STMicroelectronics

So you will see that if you press down the pushbutton with an analog signal or digital signal at the adtasheet, that same signal will appear at hte output. Maybe a picture will help.

When unpressed, the pushbutton has the signal LOW by default. You can view the control terminal as the signal which closes the switch so that the input signal can cross over to the output.

If the pushbuttons are not pressed down, then no signal will appear at the outputs. And you can’t see if hcf066 has been damaged by static, either. Each switch has an input, output, and control terminal.

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. The pinout of the chip is shown below. Limited Engineering samples available Preview:

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