API 820G
GENERAL DESCRIPTION
API820G is a tiny-controller-based voice synthesizer IC which contains all the function of API820G series and has an OTP (One Time Programmable) ROM inside.
FEATURES
• • • • • • • • • • • • • API820G – ROM : 64k x 10 bits (21 sec@6K sample rate).
Single power supply 2.
4V ~ 5.
5V.
Port1 and Port2 with wake-up function.
Power down mode for saving power consumption.
Single ROM for voice and program data.
Readable ROM code data.
One 6-bit timer overflow control.
Two stacks for subroutine calling.
Fixed current D/A to drive external connected
transistor for audio output.
Multiple playing sppeeds in 2KHz ~ 32KHz for voice playback.
5-bit ASPCM synthesizer.
Multiple lev...