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UM3481 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 UM3481
기능 Multi-Instrument Melody Generator
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UM3481 데이터시트, 핀배열, 회로
UM3481
Bowin Microelectronics
_________________________________________________________
UM3481A Multi-Instrument Melody Generator
Features
Powered by a 1.5V battery
Low standby current
512-note memory, up to 16 songs
8 playing modes by user setting
One built-in RC oscillator
8 beats selectable
3 timbres - piano, organ, and mandolin
5 tempos available through mask setting
14 tones selectable
On-chip envelope modulator and pre-amplifier
General Description
The UM3481 series is a mask-ROM-programmed multi-instrument melody generator , implemented by
CMOS technology. It is designed to play the melody according to the previously programmed
information and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin.
The device also includes a pre-amplifier which provides a simple interface to the driver circuit. The
M3481 series is intended for applications such as toys, door bells, music box, melody clock/timers and
telephones.
Absolute Maximum Ratings
DC Supply Voltage .......................................... -0.3V to +5.0V
Input Voltage Range ....................................... Vss-0.3V to Vdd+0.3V
Operating Ambient Temperature .................... 0°C to +70°C
Storage Temperature ....................................... -10°C to +125°C
Electrical Characteristics
(Vss=0V, Vdd=1.5V, Ta=25°C, unless otherwise specified.)
Parameter
Symbol Min.
Typ.
Operating Voltage
Vdd 1.3V
1.5V
Stand-by Current
Isb -
-
Input Voltage High
Vih Vdd-0.3V -
Input Voltage Low
Vil Vss
-
Input Current High
Iih 1.5µA
3µA
Input Current Low
Iil -
-
ENV Pin Drive Current
Ienv 500µA
-
Output Current (OP1)
Iol 200µA
-
Output Current (OP2)
Ioh 200µA
-
Max.
5V
12µA
Vdd
Vss+0.3V
6µA
0.1µA
-
1200µA
1200µA
Conditions
No load
Vih=Vdd
Vil =Vss
Venv=0.8V
Vol=0.8V
Voh=0.7V
Playing modes
Mode CE SL LP AS Program
0 0 X X X Standby
1 1 0 0 0 First melody...Last melodyStop
2 0 0 1 First melody...Last melodyRepeat from first melody
3 0 1 0 Start from the present melodyStop
4 1 0 1 1 Repeat the present melody
5 1 0 0 Change to the next melody...Last melodyStop
6 1 0 1 Next melody...Last melodyRepeat from first melody
7 1 1 0 Change to the next melodyStop
8 1 1 1 Change to the next melodyRepeat the same melody
( means a low to high voltage level transaction )
BOWIN ELECTRONIC COMPANY
1
www.bowin-ic.com.hk
http://www.Datasheet4U.com




UM3481 pdf, 반도체, 판매, 대치품
UM3481
Bowin Microelectronics
_________________________________________________________
C. LOW COST APPLICATIONS USING PIEZO BUZZER
(1) One-shot
(2) Level-hold
The inductor in parallel can be replaced by a 100kresistor but the sound level will be lower.
REV.6-03 ( 4 pages )
BOWIN ELECTRONIC COMPANY
4
www.bowin-ic.com.hk

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