UNISONIC TECHNOLOGIES CO., LTD

UM68TXX

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 3

Copyright © 2014 Unisonic Technologies Co., LTD

QW-R502-924.b

128 NOTES DUAL TONE

MELODY GENERATOR PWM

OUTPUT DIRECT TO BUZZER

AND SPEAKER

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DESCRIPTION

The UTC UM68TXX series are CMOS LSI designed for

using in door bell, telephone and toy application. It is an on-chip

ROM programmed for musical performance. Produced by

CMOS technology, the device results in very low power

consumption.

Since

the

UTC

UM68TXX

series

include

oscillation circuits a compact melody module can be constructed

with only a few additional components.



FEATURES

TO-92

1

* 128-Note Rom memory

* 2.5V ~ 5V power supply and low power consumption

* Dynamic speaker can be driven with external NPN transistor

* 14 tempos available through mask setting

* 15 beats available

* 27 notes (including rest) available

* OSC resistor hold mode

* Power on reset: melody begins from the first

note

* Built in level hold mode

* PWM output

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ORDERING INFORMATION

Order Number

Package

Pin Assignment

Packing

Lead Free

Halogen Free

1

2

3

UM68TxxL-T92-B

UM68TxxG-T92-B

TO-92

O/P

Tape Box

UM68TxxL-T92-K

UM68TxxG-T92-K

TO-92

O/P

Bulk

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SONG SERIES LIST

P/N

SONG NAME

UTC UM68T05

Sweet Home

UTC UM68T08

Happy Birthday

UTC UM68T19

For Alice

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MARKING