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.

Author: Fedal Nikojar
Country: Malta
Language: English (Spanish)
Genre: Finance
Published (Last): 21 February 2009
Pages: 201
PDF File Size: 8.53 Mb
ePub File Size: 1.54 Mb
ISBN: 412-1-35714-159-4
Downloads: 50680
Price: Free* [*Free Regsitration Required]
Uploader: Shalkree

There is an inbuilt oscillator circuit that serves as a time base for beat and tone generator. This IC, with its three datqsheet, looks like a transistor.

What is Web Browser.

UM66 Datasheet, PDF – Alldatasheet

The component details with cost is also with. This IC is easy to use because it can work on low voltage 0. Dtaasheet speaker is connected in series with the transistor so that the tone can be played in the speaker.


Choosing Motor For Robots. Four beats of these can be selected.

The details about the IC can be found here http: If you get a distorted sound you can add uF electrolytic capacitor in parallel to C1. The circuit should not be run in Rechargeable battery also if the Speaker resistance is less than 8 Ohm and may burn the Transistor.

(PDF) UM66 Datasheet download

Here the musical IC UM66 generates the music when it receives. These frequencies are a factor of the oscillator frequency.

The speaker can be driven by an external npn transistor connected to the output of UM Interface GPS with Arduino. Capacitor C1 is meant for noise suppression. Powers the IC, typically with 3. Where can i buy Which is the nte replacement. The melody will be available at pin 3 of UM66 and here it is amplified by using Q1 to drive the speaker. I will add a voice recorder circuit soon.

We connect this output to the Base of BC which will also switch on and off in the same tone. The beat generator is also a programmed divider which contains 15 available beats.

This is the output pin, where tone is generated. Interface SD Card with Arduino. Like Admin has stated, UM66 is designed and manufactured with on melodies.


Each part number has the capability to play a different type of tone. Connection Diagram The connection diagram is shown below. I will help you. You may also like: Component List with cost Approximate.

It is better that you should not run this circuit. The battery supply should be kept in a battery container to ensure the connection.

The volume of the sound of this circuit is so much that it can be used as a calling bell.

BT66T Melody Generator Pinout, Description, Equivalent & Datasheet

What can be done to strengthen the multiplier circuit? Do not exceed 4.

It has a 62 notes ROM to play music. The connection diagram is shown below. If anyone want to reduce the volume of the circuit then insert a resistance in place of the blue line connection. The component details with cost is also with this.