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Alarm Generator Project Using UM66TXXL CMOS IC

2016-02-19 13:41  
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um 66 music alarm circuits


Alarm Generator Circuit Project Using UM66TXXL CMOS IC

Melody Music Project Description

This simple alarm generator electronics circuit utilizes a UM66TXXL TO92 package CMOS IC that generates song depending on the type of IC used. It has a built in oscillation circuit and need only a few external components to make it work. It is powered by a power supply range from 1.5V to 4.5 V DC with low power consumption, hence a longer battery lifetime. Once it power on reset, the melody will begin to sound. The part number for different songs are as listed below.

UM66T05L Home Sweet Home
UM66T11L Love Me Tender
UM66T19L For Alice
UM66T32L COO COO waltz

um66 alarm generator buzzer schematic

PARTS LIST
IC1UM66TXXL CMOS IC
BUZ1BUZZER
SW1SWITCH
BT12 to 3 1.5V BATTERIES, BATTERIES HOLDERS

The IC can be used to drive a buzzer directly or driving a speaker though the use of a transistor.

um 66 alarm generator speaker schematic

PARTS LIST
R14.7KΩ
C10.1μF Ceramic CAPACITOR
Q1HE8050S OR BC547? NPN TRANSISTOR
IC1UM66TXXL CMOS IC
SP1SPEAKER
SW1SWITCH
BT12 to 3 1.5V BATTERIES, BATTERIES HOLDERS
UM66 COMS IC PIN Configuration  Top View

UM66 COMS IC PIN Configuration

Please send your ideas, which are very important for our success…

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