GENERAL DESCRIPTION

EM58P300 is a tiny-controller-based voice synthesizer/dual tone melody/dual tone sound effect IC which contains all the function of EM58000 series and has an OTP (One Time Programmable) ROM inside.

FEATURES

• EM58P300 – ROM : 64k x 10 bits (21 sec@6K sample rate).

• Single power supply 2.4V ~ 5.5V.

• Port1 and Port2 with wake-up function, Port3.2 with programmable IR (38KHz carry) communication function.

• Power down mode for saving power consumption.

• Single ROM for voice, melody, sound effect and program data.

• Readable ROM code data.

• One 6-bit timer overflow control.

• Two stacks for subroutine calling.

• Dual channel output simultaneously : (voice + voice), (voice + dual tone melody) or (voice + dual tone sound effect).

• 5-bit ASPCM synthesizer.

• Dual tone melody/sound effect generator with programmable envelope.

• Multiple playing sppeeds in 2KHz ~ 32KHz for voice playback.

• Multiple tempos and variable beats for dual tone melody/sound effect play-back.

• Multiple levels of volume control.

• Fixed current D/A to drive external connected transistor for audio output.