SM1155XXX1S Ver la hoja de datos (PDF) - Nippon Precision Circuits

Número de pieza

componentes Descripción

Fabricante

SM1155XXX1S

Melody LSIs

Nippon Precision Circuits  

NIPPON PRECISION CIRCUITS INC.

SM1155 series

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 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.

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 Wide pitch dynamic range (G3 to D7)

I 8-pin SOP package

ORDERING INFORMATION

Device

S M 1 1 5 5 ×××1 S

S M 1 1 5 5 ×××2 S

S M 1 1 5 5 ×××3 S

Package

8-pin SOP

PINOUT

(Top view)

T2 1

T1 2

TG 3

VSS 4

8 TC

7 VDD

6 OUT

5 OUT

PACKAGE DIMENSIONS

(Unit: mm)

0.15 −+00..015

0.695typ

5.2 ± 0.3

1.27

0.10

0.4 ± 0.1

0.12 M

0 to 10

NIPPON PRECISION CIRCUITS—1

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