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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The details about the IC um66 datasheet be found here http: It is not possible to store our own music in UM Whistle to Beep Circuit.

You may also like: It is better um66 datasheet you should not run this circuit. Here datasyeet musical IC UM66 generates the music when it receives.

The melody will dayasheet available at pin3 of UM66 and here it is amplified by using Q1 to drive the speaker. Do not exceed 4.

(PDF) UM66 Datasheet download

Resistor R1 limits the base current of Q1 within the safe values. It is better that you should not run this circuit in Eliminator as most of um66 datasheet available eliminator don’t have a good filter built in and have no precision over voltage protection. This is um66 datasheet simplest ever musical calling bell that dxtasheet be easily built.

The volume of the sound of um66 datasheet circuit is so much that it can be used as a calling bell. Save my name, email, and website in this browser for the next time I comment.


Previous post Next post. Thanks for the CMOS technology. If anyone want to reduce the volume of the circuit then insert a resistance in place of the blue line connection. This is the output pin, where tone is generated. I will add a voice recorder circuit soon. C1 is used to decouple power supply to avoid inter-modulation um66 datasheet output and IC.

Skip to main content. The circuit should not be um66 datasheet in Rechargeable datashret also if the Speaker resistance is less than u,66 Ohm and may burn the Transistor.

Melody Generator using IC UM66

Your email address will not u6m6 published. Here is a simple melody generator circuit you can make using an IC. Data sheet of UM66 is there um66 datasheet the datasheet section of the site.

Notify me of follow-up comments by email. Top menu Jm66 Us Advertise. Connection Diagram The connection diagram is um66 datasheet below. Notify me of new posts by email. Leave a Reply Um66 datasheet reply Your email address will not be published.

I will help you.

Do remember that this 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 um66 datasheet shown above. Basically, the output uum66 pin 3 turns on and off in a datashet fashion to provide the tone. Melody begins from the first um66 datasheet if power is reseted. As mentioned in the features, the BT66T comes in five different part numbers.

datasjeet If you get a distorted sound you can add uF electrolytic capacitor in parallel to C1. Capacitor C1 is meant for noise suppression. I think the explanation i gave um66 datasheet enough to understand the circuit. It has a built um66 datasheet ROM programmed for playing music.


There are two types of magnetic buzzers, expensive self drive types with inbuilt oscillator, and cheap external drive types, which you can drive in different ways.

So here is your simple magnetic buzzer ready, you can easily convert it to a piezo buzzer circuit just by adding a coil and um66 datasheet element. The connection diagram dxtasheet shown darasheet.

Here the musical IC UM66 generates the music when it receives supply and drives a small speaker through a class c um66 datasheet using silicon transistor BCb. Touch Controlled Musical Bell. If you have any question or suggestion, just drop a comment, also share this tutorial if you like it. The device has very low power consumption. Component Description IC and Transistor.

Hello I cant get that circuit in digikey. Top menu About Us Contact. Click to download pdf File. Complete Technical Details can datashedt found at the datasheet give at the end of this page.

UMT Datasheet, PDF – Alldatasheet

The circuit should not be run in Rechargeable. Powers the IC, typically with 3. Component List with cost Approximate. What can dataseet done to strengthen the multiplier circuit? um66 datasheet

UM66 Datasheet PDF

The part number and its respective tone is mentioned in the table below, you um66 datasheet Google the tone name to listen to the type of tone the IC will play. Circuit Diagram Melody Generator Circuit. Learn how your comment data is processed.