Voice Chip - 341sec one time programmed sound IC+8bit MCU

FEATURES
l Standard CMOS process.
l Embedded EPROM.
l Embedded 8-bit MCU.
l 10, 21, 42 and 85sec voice duration at 6 KHz sampling with 4-bit ADPCM compression.
l Combination of voice building blocks to extend playback duration.
l Table entries are available for voice block combinations.
l User selectable PCM or ADPCM data compress.
l Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger.
l Programmable I/Os, Timer Interrupt and Watch Dog Timer.
l Built-in oscillator with fixed Rosc, software control sampling frequency
l 2.2V 3.6V single power supply and < 5uA low stand-by current.
l PWM Vout1 and Vout2 drive speaker directly.
l D/A COUT with ramp-up ramp-down option to drive speaker through an external BJT.
DESCRIPTION
Aplus aIVR is a 8-bit CPU based Voice chip series. It is fabricated with Standard CMOS process
with embedded voice storage memory. It can store from 10 to 341 sec voice message with 4-bit
ADPCM compression at 6KHz sampling rate. 8-bit PCM is also available as user selectable option to
improve sound quality. Depending on IC body, there are up to twelve programmable I/O pins. Key
trigger and Parallel CPU trigger mode can be configured according to different application requirement.
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.
Part Number Duration Programmable IO
aIVR1004 10 sec 4
aIVR2104 21 sec 4
aIVR4208 42 sec 8
aIVR8508 85 sec 8
aIVR34112 341 sec 12

Voice Chip - 341sec one time programmed sound IC+8bit:AIVR341N-DIP-G

IVR SERIES Voice chip : VOICE + 8 bit MCU
24 I/O , Memory:8M