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SM1155 - Melody LSIs

SM1155 Description

SM1155 series NIPPON PRECISION CIRCUITS INC.Melody LSIs OVERVIEW The SM1155 series are CMOS melody LSIs that, together with a battery and piezoelec.
Number 1 2 Name T2 T1 i/o. Test pins (must be open) Melody mode control input S M 1 1 5 5 ×××1 S 3 TG ip 1 H S M 1 1 5 5 ×××2 S S M 1 1 5 5 ×.

SM1155 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) Oscillator stop function in non-play mode Power saving pull-down resistor built-in RC oscillator circuit Power-ON initialization function Wide pitch dy

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Melody LSIs Nippon Precision Circuits Inc
Nippon Precision Circuits Inc SM1155-like datasheet