M3481 Datasheet | Unknown Manufacturer

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 Program Mode CE SL LP AS 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...