- Standard CMOS process.
- Embedded 4M EPROM.
- 170sec Voice Length at 6KHz sampling and 4-bit ADPCM compression.
- Maximum 254 voice groups.
- Combination of voice blocks to extend playback duration.
- 7680 table entries are available for voice block combinations.
- User selectable PCM or ADPCM data compression.
- Three triggering modes are available (controlled by M1 and M0 input pins):
◆Key Trigger Mode ◆CPU Parallel Mode ◆CPU Serial Mode
- Voice Group Trigger Options: Edge/Level; Hold/Un-hold; Retrigger/Non-retrigger.
- Whole Chip Options:Ramp/No-ramp; Output Options; Long/Short debounce time.
- Optional 16ms or 65us (@ 8KHz sampling rate) selectable debounce time.
- RST pin set to HIGH to stop the playback at once.
- Three user programmable outputs for STOP pulse,BUSY signal and flashing LED.
- Built-in oscillator to control sampling frequency with an external resistor.
- 2.2V – 3.6V single power supply and < 5uA low stand-by current.
- PWM Vout1 and Vout2 drive speaker directly.
- D/A COUT pin drives speaker through an external BJT.
- Development System support voice compilation.
