CDUBE from Texas Instruments at low prices and same day dispatch! Orders above £20 Technical Datasheet: CDUBE Datasheet. See all Technical. CMOS Hex Inverter. DATASHEET .. Accordingly, the reader is cautioned to verify that datasheets are current before . 1/6 CD IN. OUT. CDUBE ti CDUB, CMOS Hex Inverter Data sheet acquired from Harris Semiconductor SCHSC Revised September The CDUB-Series.

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The buzzer driver uses the six inverters to create an oscillator with a frequency of around 3. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Media New media New comments Search media. Oh well, at least the part itself is connected correctly. None of my meters could resolve it even when in uA range.

Trying to use a 2n mosfet to trigger an alarm panel. It works well as a linear amplifier.

CDUBE CD Hex Inverter IC

Q1 along with the forward drop of D1 determine minimum voltage the circuits operates at- around 4V, well beyond a typical 9V battery end of life. Datasheets, Manuals or Parts.


I made some fairly low distortion 0. And now on to the schematic. Forums New posts Search forums. The CD is not recommended by Texas Instruments. Today we have a somewhat vintage teardown. I need to get one of those. Replacement Transformer Started by ncag Today at 7: What’s the cd069ube between the CD and CD? To participate you need to register. The CD is recommended instead if it has a single supply voltage.

CMOS Hex Inverter

THey have different power cd4069ubr schemes and the output circuitry is different. Since there is no hysteresis, the alarm will shut off the moment contacts stop touching water.

There is no battery low indicator, but at such a low drain it will take years for the battery to dataseet replacement.

That app note was a great read! Do you have any info on the buzzer, such as a part number? C2, I guess, is to even out any voltage spikes when the gate changes state? BrownOut Banned Aug 13, Thanks for the teardown.


Luckily it does not take much to make one on a design this simple. Welcome to our site! It’s not on the datasheet.

Watchdog Water Alarm teardown

The CD has symmetrical source and sink currents but not as high as 50mA. The top one detects water and turns the power on. It looks like I’ll have to order some CDs or 74C04s then.

The bottom one is just a driver for the buzzer. Is the answer 60? No wonder these things last forever on a cd40669ube.

Has anyone here tried using this water alarm as more than just an alarm? When alarm is on, the current jumps to around eatasheet. For a better experience, please enable JavaScript in your browser before proceeding.