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EASY SOUND - EM57P300 SERIES
TINYCONTROLLER-BASED SOUND PROCESSOR
inary Prelim
GENERAL DESCRIPTION
EM57P300 is a tiny-controlled-based voice/dual tone melody/dual tone sound effect Ics which contain all the function of EM57000 series and has an OTP (One Time Programmable) ROM inside.
FEATURES
• • • • • • • • • • • EM57P300 – ROM : 64k x 10 bits (21 sec@6K sample rate). Working Voltage 2.4V ~ 5.1V. One 4-bit input port, two 4-bit I/O ports, and 32x4 bits RAM. 8k (maximum) program ROM. One 6-bit timer overflow control. ASPCM synthesizer and dual tone melody/sound effect generator. 4k~32k Hz playing speed for voice play-back. Multiple tempos for dual tone melody/sound effect play-back. Variable beats for dual tone melody/sound effect play-back. Multiple levels of volume control.