Melody LSIs

The SM1155 series are CMOS melody LSIs that, together with a battery and piezoelectric buzzer, operate in one of 3 melody modes determined by bonding options. They also feature an Oscillator stop function in non- play mode and a variable pull-down resistance function that responds to input levels in order to reduce power consumption, reduce cost, and extend battery life, making them ideal in a wide range of applications including the hold sound for telephones and toys. By Nippon Precision Circuits Inc, (NPC)
SM1155 's PackagesSM1155 's pdf datasheet

SM1155 Pinout, Pinouts
SM1155 pinout,Pin out
This is one package pinout of SM1155,If you need more pinouts please download SM1155's pdf datasheet.

SM1155 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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