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PDF M3481 Data sheet ( Hoja de datos )
| Número de pieza | M3481 | |
| Descripción | (M348x) Multi-Instrument Melody Generator | |
| Fabricantes | ETC | |
| Logotipo |  |
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M348x Series
UM348x 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 M3481 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 melody→Stop
2 ↑ 0 0 1 First melody→...→Last melody→Repeat from first melody
3 ↑ 0 1 0 Start from the present melody→Stop
4 1 0 1 1 Repeat the present melody
5 1 ↑ 0 0 Change to the next melody→...→Last melody→Stop
6 1 ↑ 0 1 Next melody→...→Last melody→Repeat from first melody
7 1 ↑ 1 0 Change to the next melody→Stop
8 1 ↑ 1 1 Change to the next melody→Repeat the same melody
( ↑ means a low to high voltage level transaction )
1
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet M3481.PDF ] | |
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