GENERAL DESCRIPTION

EM55000 series is a series of 3 to 340 seconds single chip high quality voice synthesizer IC which contains one 4-bit Input port (provided for EM55100 and above), three 4-bit I/O ports and a tiny controller. By programming through the tiny controller, users application includes section combination, trigger mode, control outputs, keyboard matrix and other logic function can be easily implemented.

FEATURES

• Single power supply.

• Crystal/Ring oscillator option.

• 3-340 seconds voice capacity.

• Power down mode for saving power consumption.

• Reset pin available.

• Single ROM for voice program. Maximum 32 K program addressing size available.

• Readable ROM data.

• One 6 bit timer overflow control is provided.

• Two stack for subroutine call.

• 5 bits ASPCM synthesis.

• 38K Hz modulation for IR transmission.

• 15 steps volume control.

• Direct Drive/traditional DAC.

• 8 bits resolution D/A.

• Green VoiceTM.