CF1155 データシートの表示（PDF） - Nippon Precision Circuits

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CF1155

Melody LSIs

Nippon Precision Circuits  

CF1155 series

Melody LSIs

OVERVIEW

The CF1155 series are CMOS melody LSIs that, together with a battery and piezoelectric buzzer, operate in

one of 3 melody modes determined by input level or bonding options. They also feature an oscillator stop func-

tion 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 applica-

tions including greeting cards and toys.

FEATURES

I Requires few external components

I 1.2 to 3.6V wide operating voltage range

I Low power consumption

I 3 melody modes (bonding option)

I Oscillator stop function in non-play mode

I Power saving pull-down resistor built-in

I RC oscillator circuit

I Power-ON initialization function

I 2 VSS pad connections

I Wide pitch dynamic range (G3 to D7)

I Chip form

ORDERING INFORMATION

Device

Package

CF1155

Chip form

SEIKO NPC CORPORATION —1

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