Contek UM66T68L, UM66T32L, UM66T19L, UM66T05L Datasheet
UM66TXXL LINEARINTEGRATED CIRCUIT
MELODY INTEGRATED
CIRCUIT
DESCRIPTION
The Contek 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 Contek 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
1: VSS 2: VDD 3: O/P(Melody output)
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TO-92
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified )
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.
SONG SERIES LIST
P/N SONG NAME
Contek UM66T05L Home sweet home
Contek UM66T19L For Alice
Contek UM66T32L COO COO waltz
Contek UM66T68L It is a small world
Contek Microelectronics Co.,Ltd.
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
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UM66TXXL LINEARINTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Vss=0V,Fosc=65536Hz,Tj=25 C,unless otherwise specified)
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 mA
O/P Drive Current Io/p Vdd=1.3V,O/P=0.8V 400 600 mA
O/P Sink Current Io/p Vdd=1.3V O/P=0.5V open 350 450 mA
Frequency Deviation
Deviation Per Lot
Frequency Stability DF/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.
DF/F Vdd=1.5V -12 %
Fosc(1.6V) Fosc(1.3V)
-
Fosc(1.3V)
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 Contek UM66T series.The 15 tempos are:128,137,148,160,175,192,213,
240 , 274, 320,480,640,960,1920 J/minute.
Contek Microelectronics Co.,Ltd.
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
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