aP89170
Enlargement
●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.
Description
aP89170 series high performance Voice OTP is fabricated with Standard CMOS process with embedded 4M bits EPROM. It
can store up to 170 sec voice message with 4-bit ADPCM compression at 6KHz sampling rate.8-bit PCM is also available
as user selectable option.Three trigger modes,simple Key trigger mode,Parallel CPU trigger mode and CPU serial command
mode, facilitate different user interface. User selectable triggering and output signal options provide maximum flexibility
to various applications.Built-in resistor controlled oscillator,8-bit current mode D/A output and PWM direct speaker driving
output minimize the number of external components. PC controlled programmer and developing software are available.
