UM66 is CMOS technology melody integrated circuit especially used in to give the output from speaker, when we reset the circuit UM66 will play the melody. The following schematic is for UM66 or BT66 musical IC. You need very few components to make this circuit. Pin configuration for UM66 is. Here is one listing from China for the UM66, and another one from France. Some IC become obsolete and may not be available in market.

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Do you have an idea about an IC easy to find? How to use a relay November 15, I think the explanation i gave is ym66 to understand the circuit. Easy steps for making a line following robot using Infrared LED, Infrared based music transmitter and receiver. Connect pin3 of IC UM66 and emitter pin of transistor to the base negative rail.

Dear sir, could you forward me a 30second sound circuit that activated by another speaker out alarm clock Thanks shyaman. Clap switch December 18, Some IC become obsolete and may not be available in market.

Note that there are some unscrupulous semiconductor vendors on eBay so be careful, I would always buy from somewhere like Digikey, Mouser, Farnell, etc if you can I had a quick look but couldn’t see anything particularly suitable.


The melody will be available at pin 3 of UM66 and here it is amplified by using Q1 to drive the speaker. So my question is: Home Questions Tags Jm66 Unanswered. Thanks for the CMOS technology. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Your email address will not be published. Uj66 a 9V Door Bell Chime. I hope this is useful. C1 is used to decouple power supply to avoid inter-modulation between output and IC.

IC UM66 – sajilv’s Blog

Connect pin2 of IC UM66 to the positive rail. Jm66 versions of UM66T are available which generate tone of different songs. Sign up or log in Sign up using Google. Here is an another angle of breadboard arrangement.

How to make one transistor FM transmitter on a stripboard- page You could quite easily make a similar circuit using a small micro, a timer or two, using discrete transistors, etc. Is capacitor helps in sound suppression in this circuit? Sometimes in resource shortage its good to change plan. It has a built in ROM programs for playing music.

This circuit uses a 3 terminal IC UM Touch Controlled Musical Bell. Assemble the circuit on a good quality common board.


Dark sensor on breadboard. How to use variable resistors November 15, Skip to main content. It depends on your level of knowledge and whether you actually want to design a circuit or simply build an existing one. Hello I cant get that circuit in digikey.


To find out more, including how to control cookies, see here: Building a circuit on a breadboard November 8, How to use infrared based music transmitter and receiver. I find only endless results, a lot of models of ICs who don’t even remote to UM Take the speaker or buzzer and connect it between the collector pin and positive rail.

So maybe it’s better to move on to another circuit.

UM66 IC Datasheet | Melody IC Pin Diagram

You need a voice recorder circuit interfaced with a amplifier circuit. Post as a guest Name. Still not working leave a comment and I will help you.

This high-density System-in-Package SiP integrates controller, power switches, and support components. Here is one listing from China for the UM66, and another one from France.

I’m trying to build a circuit of a Doorbell, but it’s very hard to find ICs from local stores. Hi,my name is Satish.

Interface SD Card with Arduino. Infrared sensor with PWM. Sign up using Facebook. Previous post Next post. Make sure that you do not give more than 4. Capacitor C1 is meant for noise suppression.