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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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(PDF) UM66 Datasheet download

SPI Module of Arduino. Data sheet of UM66 is there in the datasheet section of the site. UM66T is a melody integrated circuit. The circuit can be made even without soldering and the ideal for the first electronic project for newbies.

We have other Tone Generator circuits that you may like; Take a look: What can be done to strengthen the multiplier circuit? This is a simple project using the IC UM What is Web Browser.


BT66T Melody Generator Pinout, Description, Equivalent & Datasheet

Many versions of UM66T are available which generate tone of different songs. UM66 is a 3 pin melody device.

Arduino based GPS receiver. A set of 4 bits controls the scale code while 2 bits control the rhythm code. Component Description IC and Transistor. Here the musical IC UM66 generates the music datasheet it receives. If anyone want to reduce the volume of the circuit then insert a resistance in place of the blue line connection.

This is the simplest ever musical calling bell that can be easily built. Touch Controlled Musical Bell.

UM66 Datasheet PDF

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. Thanks for the CMOS technology.

Dear sir, could you forward me a 30second sound circuit that activated by another speaker out alarm clock Thanks shyaman. It is not possible to store our own music in UM The output of the IC that is the melody can be obtained at the pin BD pin3. It is designed for use in bells, telephones, toys etc. Connected to the ground of Circuit. UM66 has an datahseet beat and tone generator.


When power is turned on, the melody generator is reset and melody begins from the first note. Resistor R1 limits the base current of Q1 within the safe values. Basically, the output pin pin 3 turns on and off in a particular fashion to provide the tone.

UM66 Datasheet, PDF – Alldatasheet

The details about the IC can be datassheet here http: I think the explanation i gave is enough to understand the circuit. The circuit should not be run in Rechargeable. Do not exceed 4.

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 as shown above. It has an inbuilt tone and a beat generator. Melody begins from the first note if power is reseted.

You can not reprogramme it.