UM66TXXL-T92-R - Unisonic Technologies Co., Ltd.

UNISONIC TECHNOLOGIES CO., LTD

UM66TXXL

CMOS IC

www.unisonic.com.tw

1 of 4

QW-R502-042,F

MELODY INTEGRATED CIRCUIT

 DESCRIPTION

The UTC UM66TXXL 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 UM66TXXL series include oscillation circuits a

compact melody module can be constructed with only a few

additional components.

 FEATURES

*64-Note Rom memory

*1.5V ~ 4.5V power supply and low power consumption

*Dynamic speaker can be driven with external NPN

transistor

*OSC resistor hold mode

*Power on reset: melody begins from the first note

*Built in level hold mode

TO-92

1

*Pb-free plating product number: UM66TxxLK

 ORDERING INFORMATION

Order Number Pin Assignment

Normal Lead Free Plating Package 1 2 3 Packing

UM66TxxL-T92-B UM66TxxLK-T92-B TO-92 V

SS

V

DD

O/P Tape Box

UM66TxxL-T92-K UM66TxxLK-T92-K TO-92 V

SS

V

DD

O/P Bulk

UM66TxxL-T92-R UM66TxxLK-T92-R TO-92 V

SS

V

DD

O/P Tape Reel

UM66TxxLK-T92-B (1) P ac k i ng Ty pe

( 2)P ac kage Type

(3)Lead Plating

(1 ) B: Ta pe Bo x, K: Bu lk, R : Tap e Re el

(2) T92: TO-92

(3) K : Lead F ree P lat ing, B lank: Pb/S n

(4) xx: refer to SONG SERIES LIST(4)Song Series

 SONG SERIES LIST

P/N SONG NAME

UTC UM66T05L Home Sweet Home

UTC UM66T08L Happy Birthday

UTC UM66T11L Love Me Tender

UTC UM66T19L For Alice

UTC UM66T32L COO COO waltz

UM66TXXL

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

2 of 4

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QW-R502-042,F

 ABSOLUTE MAXIMUM RATINGS

(Operating temperature range applies unless otherwise specified.)

PARAMETER SYMBOL RATINGS UNIT

DC Supply Voltage V

DD

1.5 ~ 4.5 V

Operating Temperature T

OPR

-10 ~ +60

°

C

Storage Temperature T

STG

-55 ~ +125

°

C

Notes: Stress above those listed under absolute maximum ratings may cause permanent damage to the device.

These are stress ratings only. Functional operations of this device at these or any other conditions above

those indicated in the operational section of this specification is not implied and exposure to absolute

maximum ratings conditions for extended periods may affect device reliably

.

 ELECTRICAL CHARACTERISTICS

(Vss=0V, Fosc=65536Hz, T

J

=25

℃

, unless otherwise specified)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Operating Voltage V

DD

1.5 4.5 V

Operating Current I

DD

V

DD

=1.5V, O/P open 60

µ

A

O/P Drive Current I

O(DRIVE)

V

DD

=1.5V,O/P=0.8V 400 600

µ

A

O/P Sink Current I

O(SINK)

V

DD

=1.5V, O/P=0.5V open 350 450

µ

A

Frequency Deviation

Deviation Per Lot

∆

F/F V

DD

=1.5V -12 %

Frequency Stability

∆

F/F

Fosc(1.5V)

Fosc(1.5V)Fosc(1.6V) −

10 %

UM66TXXL

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

3 of 4

www.unisonic.com.tw

QW-R502-042,F

 FUNCTIONAL DESCRIPTION

OSCILLATOR CIRCUIT

The oscillator frequency is used as a time for tone and beat generators. Its accuracy affects the quality of the

music.

TONE GENERATOR

Tone Frequencies are oscillator frequencies-M, where m is any even number from 64 to 256. Within a melody 14C

scales can be selected including Pause code and End code. The tone generator is a programmed divider, The

Range of Scales is from “C4” to “C6” and range of frequency varies from 258Hz to 23768Hz.

RHYTHM GENERATOR

The rhythm generator is also programmed dividers. It contain 15 available rhythms as

follows:1/4,1/2,3/4,1,1-1/4,1-1/2,1-/3/4,2,2-1/4,2-1/2,2-/3/4,3,3-1/4,3-1/2,3-/3/4.Four rhythms can be selected from

these.

MELODY ROM

The Mask Rom can memorize 64 notes with 6 bit.4 bits are used for controlling the scale code and 2 bits are

used for controlling the rhythm code.

TEMPO GENERATOR

There are 15 available tempos in the UTC UM66T series. The 15 tempos are:128,137,148,160,175,192,213,

240 , 274, 320,480,640,960,1920 J/minute.

UM66TXXL

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

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QW-R502-042,F

 APPLICATION CIRCUITS

Fig.1

Fig.2

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

m alfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believ ed to be accurate

and reliable and may be changed without notice.