- Standard CMOS process.
- Embedded EPROM.
- Embedded 8-bit MCU.
- 341sec voice duration at 6 KHz sampling with 4-bit ADPCM compression.
- Combination of voice building blocks to extend playback duration.
- Table entries are available for voice block combinations.
- User selectable PCM or ADPCM data compress.
- Voice Group Trigger Options: Edge/Level; Hold/Un-hold; Retrigger/Non-retrigger.
- Programmable I/Os, Timer Interrupt and Watch Dog Timer.
- Built-in oscillator with fixed Rosc, software control sampling frequency.
- 2.2V – 3.6V single power supply and < 5uA low stand-by current.
- PWM Vout1 and Vout2 drive speaker directly.
- D/A COUT with ramp-up ramp-down option to drive speaker through an external BJT.
- Volume control.
- Maximum 9-bit resolution.
- Internal Power-up reset circuit built-in; RSTB provides external controlled reset to the chip.
