APLUS aP89021
VOICE OTP
FEATURES
aP89021/010 Standard CMOS process. Embedded 512K/256K bits EPROM. 21/10 Sec Voice Length at 6 KHz sampling and 4-bit ADPCM compression. Maximum 12 voice groups. Combination of voice building blocks to extend playback duration. 960 table entries are available for voice block combinations. User selectable PCM or ADPCM data compress. Two triggering modes are available by whole chip option during voice compilation. - Key Trigger Mode – Combinations of S1 ~ S4 to trigger up to 12 voice groups; SBT for sequential trigger. - CPU Parallel Trigger Mode – Combinations of S1 ~S4 with SBT goes HIGH to strobe start the voice playback. Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger. Whole Chip Options: Ramp / No-ramp; Output Options; Key / CPU trigger mode. 16ms (@ 8KHz sampling rate) Debounce Time for both Key and CPU Trigger Modes. RST pin set to HIGH to stop playback at once. Three user programmable outputs for STOP plus, BUSY signal and flashing LED.