SM1126V 데이터 시트보기 (PDF) - Nippon Precision Circuits

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SM1126V

Melody IC with Built-in SRAM

Nippon Precision Circuits  

NIPPON PRECISION CIRCUITS INC.

SM1126 Series

Melody IC with Built-in SRAM

OVERVIEW

The SM1126 Series are melody ICs for use in mobile

telecommunications equipment. A maximum of 15

melodies can be stored in programmable ROM and

one in built-in read/write SRAM.

PINOUT

(Top View)

8-pin VSOP

FEATURES

s 2.0 to 3.6 V supply voltage

s Maximum of 16 melody selections (15 in ROM +

1 in SRAM)

s Level hold playback mode

s External reference clock input versions and built-

in RC oscillator versions available, set by master-

slice option (RC oscillator versions require an

external resistor and capacitor).

s Selectable clock frequencies (fixed for all melo-

dies)

• External clock input versions (6 frequencies)

- 32.768 kHz system: 32.768, 65.536 and

131.072 kHz

- 38.4 kHz system: 38.4, 76.8 and 153.6 kHz

• Built-in RC oscillator versions (1 frequency)

- 131.072 kHz

s 2-pin serial data melody selection and 1-pin mel-

ody playback control

s Parity check function

s Delivery pattern alarm

s Power save function

• External clock input versions

Clock gating in non-play modes

• Built-in RC oscillator versions

Oscillator stopped in non-play modes

OSC

1

8

VSS

SIO

2

7

VDD

SC

3 1126×× 6

MTO

ST

4

5

TEST

PACKAGE DIMENSIONS

(Unit: mm)

0.575 TYP

3.1 0.3

+

0.15−

0.1

0.05

ORDERING INFORMATION

Device

SM1126××V

Package

8-pin VSOP

0.65

0.10

0.22 0.1

+ 0.12 M

NIPPON PRECISION CIRCUITS—1

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