UTCUM66TXXL

CMOSIC

QW-R501-001,D

PARAMETER

SYMBOL

VALUE

UNIT

DC supply voltage

1.5 ~ 4.5

V

Operating Ambient Temperature Range

Topr

-10 ~ +60

°C

Storage Temperature Range

Tstr

-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.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Operating Voltage

BVdd

1.5

4.5

V

Operating Current

Id

Vdd=1.5V O/P open

60

µA

O/P Drive Current

Io/p

Vdd=1.5V,O/P=0.8V

400

600

µA

O/P Sink Current

Io/p

Vdd=1.5V O/P=0.5V open

350

450

µA

Frequency Deviation

Deviation Per Lot

∆F/F

Vdd=1.5V

-12

%

Frequency Stability

∆F/F

Fosc(1.5V)

Fosc(1.5V)

Fosc(1.6V)

−

10

%

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.