FEATURES
aIVR341N 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 2.4V – 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. DESCRIPTION
Aplus’ aIVR341N is a 8-bit MCU based Voice chip. 8-bit PCM is also available as user selectable option to improve sound quality. There are upto fifteen programmable I/O pins.
APLUS
