EM58000 Series :

EM58000 is a series of single chip dual channel IC with voice synthesizer/dual tone melody/dual tone sound effect. The dual channel can be (voice + voice), (voice + dual tone melody) or (voice + dual tone sound effect) simultaneously. That contains some input and I/O ports, and a tiny controller. By programming through the tiny controller, user's application including section combination, trigger modes, control outputs, IR communication, and other logical function can be easily implemented.

EM58P300 :

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 speeds 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.