A music generator using UM66 IC is shown above,
UM66 is a pleasing music generator IC which works on a supply voltage of 3V. the required 3V supply is given through a zener regulator. its out put is taken from the pin no1 and is given to a push pull amplifier to drive the low impedance lowd speaker. A class A amplifier before push pull amplifier can be used to decrease the noise and improve out put. UM66 is a 3 pin IC package just looks like a BC 547 transistor.
Pin out of UM66 IC
| Pin No | Designation | Description |
| 1 | Out put | Melody out put |
| 2 | +Vdd | Positive power supply |
| 3 | -Vss | Negative Power supply |
Features of UM66T series
62 Note ROM MemoryVoltage rating: 1.3V to 3.3 V
Power on reset
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