DataSheet: PDF icon UMpdf. UM66T is a melody integrated circuit. It is designed for use in bells, telephones, toys etc. It has an inbuilt tone and a beat. 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. 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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I will add a hm66 recorder circuit soon. The melody will be available at pin 3 of UM66 and here it is amplified by using Q1 to drive the speaker. A set of 4 bits controls the scale code while 2 bits control the rhythm code.

We have already learnt how Zener can be used as Regulator and how the Zener resistor value R1 can be calculated. Do remember that datasgeet 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.


Dear sir, could you forward me a 30second dataaheet circuit that activated by another speaker out alarm clock Thanks shyaman. This IC is easy to use because it can work on low voltage 0. Skip to main content. Counting of number of zeros,even and odd numbers in an array. We connect this output to the Base of BC which will also switch on and off in the same tone. Your email address will not be published.

(PDF) UM66 Datasheet download

The speaker is connected in series with the transistor so datadheet the tone can be played in the speaker. The component details with cost is also with. Assemble the circuit on a good quality common board. It is not possible to store our own music in UM C1 is used to decouple power supply to avoid inter-modulation between output and IC. Here the musical IC UM66 generates the music when it receives. It is better that you should not run this circuit. Connection Diagram The connection diagram is shown below.

UM66 Datasheet, PDF – Alldatasheet

It is designed for use in bells, telephones, toys etc. Interface SD Card with Arduino. The battery supply should be kept in a battery container to ensure the connection. Submitted by admin on 24 October The circuit can be made even without soldering and the ideal for the first electronic project for newbies. Hello I cant get that datahseet in digikey.


The details about the IC can be found here http: UM66 is a 3 pin melody device. Melody begins from the first note if power is reseted.

You can not reprogramme it. Choosing Motor For Robots. Four beats of these can be selected. This high-density System-in-Package SiP integrates controller, power switches, and support components. You may also like: This is the output pin, where tone is generated. Like Admin has stated, UM66 is designed and manufactured with those melodies. In this circuit please don’t give the supply beyond 3 volt without.

UM66 Datasheet PDF

It is mainly used in circuits where a tone has to be played as a notification for the user. Is capacitor helps in sound suppression in this circuit?

Ding Dong Sound Generator. This IC, with its three legs, looks like a transistor.