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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Is the answer 60? Very nice tear down and very in depth. It appears Source and Drain are swapped in silk. Articles Top Articles Search resources. Not much in here and sure looks like the eighties! Here is a graph of the gain and frequency response of a CD or a 74C04 Cmos inverting amplifier:. It looks like I’ll have to order some CDs or 74C04s then.

Cc4069ube to our site! R1 keeps gate of the FET pulled low, to keep it off. No wonder these things last forever on a battery. While in standby, the only power drain is the leakage through C1 and Q1.

Watchdog Water Alarm teardown

Forums New posts Search forums. The sensors could be local, or remote using supplied wire. Oh well, at least the part itself is connected correctly.


Rumor has it these last forever on a nine volt battery! Hero Banned Aug 14, With sufficiently conductive fluid touching the two electrodes, the gate of Q1 gets pulled up and it turns on. The bottom one is datashet a driver for the buzzer. It also happens to be where the ground trace connects. Media New media New comments Search media. Datasheets, Manuals daatasheet Parts.

Luckily it does not take much to make one on a design this simple. But at room temperature and at least on this unit it was in nA.

CD4069UBE Datasheet Download

The enclosure is not sealed and if water level keeps rising past the sensing compartment, there is no guarantee that the alarm will stay functional. Trying to use a 2n mosfet to trigger an alarm panel. The CD parts that are for sale these ratasheet always have a U after the number, that is CDU and this is important. A classic application for an unbuffered part is when it is used as a clock oscillator. This alarm has a pretty simple task- sit somewhere quietly and watch for water leak.

The rainwater fd4069ube into quadrant III, and reaches the finished room before it gets to the drain or the sump. These and the CD are logic inverters that are always Un-Buffered. Not going to near either rail should also help. They sink 50mA but source only 8 ma with a 10V supply and an output voltage of 5V.


CD is so old, the datasheet is still from Harris. 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. For a better experience, please enable JavaScript in your browser before proceeding. Leave a Reply Cancel reply Your email address will not be published.

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Watchdog Water Alarm teardown | KuzyaTech

I drew the chip U1 as seven parts for clarity: C2, I guess, is to even out any voltage spikes when the gate changes state? The bare board is made on week 17 of It just shares C1 with the rest of the board.

Nice attention to details. What we have here is two essentially independent sections. Do you have any info on the buzzer, such as a part number? What’s the difference between the CD and CD?