M3482

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-...