CF1156_06 参数 Datasheet PDF下载

CF1156 series

Melody LSIs

OVERVIEW

The CF1156 series are CMOS melody LSIs with built-in LED driver that, together with a battery and piezo-

electric buzzer, operate in one of 3 melody modes determined by input level or bonding options. They also fea-

ture 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 greeting cards and toys.

FEATURES

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LED direct drive

Requires few external components

2.0 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

2 V

SS

pad connections

Wide pitch dynamic range (G

3

to D

7

)

Chip form

ORDERING INFORMATION

Device

CF1156

Package

Chip form

SEIKO NPC CORPORATION —1