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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Each part number has the capability to play a different type of tone.

(PDF) UM66 Datasheet download

We have other Tone Generator circuits that you may like; Take a look: Here the musical IC UM66 generates the music when it receives supply and drives a small speaker through a class c amplifier using silicon transistor BCb. It is designed for use in bells, telephones, toys etc. The tone generator is a programmed divider which produces certain frequencies. It has a 62 notes ROM to play music.

UM66 IC Datasheet | Melody IC Pin Diagram

The speaker can be driven by an external npn transistor connected to the output of UM Many versions of UM66T are available which generate tone of different songs.

Do remember that this IC pf be able to play only one dxtasheet, if you need a different tone you have to use a different IC with a different part number as shown above. It has a built in ROM programs for playing music. Leave a Reply Cancel reply Your email address will not be published. It is better that you should not run this circuit.


Component Description IC and Transistor. Hello I cant get that circuit in digikey. The connection diagram is shown below. This IC is easy to use datasueet it can work on low voltage 0. It has an inbuilt tone and a beat generator. These frequencies are a factor of the oscillator frequency. SPI Module of Arduino. You can not reprogramme it. This IC, with its three legs, looks like a transistor. What is Web Browser. Your email address will not be published.

Powers the IC, typically with 3. I will add a voice recorder circuit soon. This is a simple project using the IC UM I have searched for icum66 in the mu66 but cannot find one.

The device has very low power consumption. It can also be easily interfaced with a normal Piezo electric speaker even buzzer or to a 6 ohm speaker through a NPN transistor as shown below. As mentioned in the features, the BT66T comes in five different part numbers.

Capacitor C1 is meant for noise suppression.

Interface SD Card with Arduino. Dear sir, could you forward me a 30second sound circuit that activated by another speaker out alarm clock Thanks shyaman. When power is turned on, the melody generator is reset and melody begins from the first note.

Here the musical IC UM66 generates the music when it receives. If anyone want to reduce the volume of the circuit then insert a resistance in place of the blue line connection. It is not possible to store our own music in UM Like Admin has stated, UM66 is designed and manufactured with those melodies.


I think the explanation i gave is enough to understand the circuit. This is um666 output pin, where tone is generated. The details about the IC can be found here dataaheet The part number and its respective tone is mentioned in the table below, you can Google the tone name to listen to the type of tone the IC will play.

Melody begins from the first note if power is reseted.

What can be done to strengthen the multiplier circuit? TL — Programmable Reference Voltage. UM66T is a melody integrated circuit. This is the simplest ever musical calling bell that can be easily built. The melody will be available at pin 3 of UM66 and here it is amplified by using Q1 to drive the speaker.

Choosing Battery for Robots. The volume of the sound of this circuit is so much that it can be used as a calling bell. Assemble the circuit on a good quality common board.

Thanks for the CMOS technology.

UM66 Datasheet PDF

Four beats of these can be selected. It is mainly used in circuits where a tone has to be played as a notification for the user. Complete Technical Details can be found at the datasheet given at the end of this page.