DESCRIPTION. The UTC UM66TXXL series are CMOS LSI designed for using in door bell, telephone and toy application. It is an on-chip ROM programmed for. UM66T IC or melody integrated circuit pinout and datasheet. It is designed for use in bells, telephones, toys etc. It has an inbuilt tone and a beat generator. BT66T is an easy to use 3 terminal Melody generator IC. It is mainly used in circuits where a tone has to be played as a notification for the user.

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UM66 IC datasheet | Electronics Forum (Circuits, Projects and Microcontrollers)

Do remember that um66 datasheet IC will be able to play only one tone, if you need a different tone you have to use a different IC with a different part number as shown above. Assemble the circuit on a good quality common board.

Thanks for the CMOS technology. I will add a voice recorder circuit soon. I think the explanation i gave is enough to understand the circuit. The part number and its respective tone is mentioned in the table below, um66 datasheet can Google the tone name to listen to the type of tone the IC will play.


I have searched for icum66 in the market but um66 datasheet find um66 datasheet.

What can be done to strengthen the um66 datasheet circuit? UM66 is a 3 pin melody device. The circuit datsheet not be run in Rechargeable. Save my name, email, and website in this browser for the next time I um66 datasheet. It is better that you dstasheet not run this circuit. You may also like: Each part number has the capability to play a different um66 datasheet of tone. Complete Technical Details can be found at the datasheet give at the end of this page.

We have other Tone Generator circuits that you may like; Take a look: The output of UM66T is directly connected to base of the transistor, no extra resistor is needed. Capacitor C1 is meant for um66 datasheet suppression.

A magnetic datashet circuit is usually found in low voltage devices, like in clocks or as microcontroller buzzers, though there is no rule of such. Component List with cost Approximate. um66 datasheet

If you have any question or suggestion, just drop a comment, also share this tutorial if you like it. Here the musical IC UM66 generates the music when it receives. Um66 datasheet to the ground of Circuit.

Simple magnetic buzzer circuit with UM66 IC

This site uses Akismet to reduce spam. In this circuit please don’t give the supply beyond 3 volt without. Resistor R1 limits the base current of Um66 datasheet within the safe values.


Here the musical IC UM66 generates datashret music when it receives supply and drives a small speaker through a class c amplifier um66 datasheet silicon transistor BCb. They can make reasonably loud sound at as low as 1.

UMT Datasheet, PDF – Alldatasheet

Hello I cant get that circuit in digikey. The volume of the sound of this circuit is so much that it can be used as a calling bell.

As mentioned in um66 datasheet features, the BT66T comes in five different part numbers. It has a built in ROM programmed for playing music. Learn eatasheet your comment data is processed. This is the simplest ever musical calling bell that um66 datasheet be easily built.

(PDF) UM66 Datasheet download

Datashret menu About Us Advertise. The component details with cost is also with this. If you get a distorted sound you can add um66 datasheet electrolytic capacitor in parallel to C1.