EM57001

EASY SOUND - EM57000 SERIES TINY CONTROLLER-BASED SOUND PROCESSOR GENERAL DESCRIPTION EM57000 is a series of single chip Voice/Dual tone Melody/Dual tone Sound Effect synthesizer ICs. It contains one 4-bit input port (provided for EM57100 and above), two 4-bit I/O ports and a tiny controller. User's applications, such as section combination, trigger modes, control outputs, keyboard matrix, and other logic functions, are easily implemented by programming through its tiny controller. FEATURES • Single power supply 2.4 V ~ 5 V. • Wide range of ROMs : EM57001 - 10Kx10 bits, EM57100 - 16Kx10 bits, EM57200 - 32Kx10 bits, EM57300 - 64Kx10 bits, EM57400 - 128Kx10 bits, EM57500 - 256Kx10 bits, EM57600 - 512Kx10 bits, EM57700 - 1024Kx10 bits. • One 4-bit input port (provided for EM57100 and above), two 4-bit I/O ports. • 16x4 bits RAM for EM57001, 32x4 bits RAM for EM57100~EM57500, 128x4 bits RAM for EM57600 and above. • 8K (maximum) program ROM for EM57001~EM57500. 32K (maximum) program ROM for EM57600 and above. • One 6-bit timer overflow control. • PCM, 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. • Fixed current D/A output to drive external connected transistor for voice output. • A pin ( except EM57001, EM57400 ) can be programmed as an IR communication p...