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SM1155

Part Number	SM1155
Manufacturer	Nippon Precision Circuits Inc
Description	Melody LSIs
Published	Apr 16, 2005
Detailed Description	SM1155 series NIPPON PRECISION CIRCUITS INC. Melody LSIs OVERVIEW The SM1155 series are CMOS melody LSIs that, togethe...
Datasheet	SM1155 PDF File

Overview

SM1155 series NIPPON PRECISION CIRCUITS INC.
Melody LSIs OVERVIEW 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 nonplay 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.
FEATURES I I I I I I I I I I Requires few external components 1.
2 to 3.
6V wide operating voltage range Low power consumption 3 melody modes (bonding option) O...

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