Integrated Circuits Inc.

aIVR3K Series

Mar 27, 2012

3

FEATURES

Embedded OTP memory and 8-bit MCU

Built-in oscillator and Power On Reset circuits to reduce external components.

2.2V – 3.6V single power supply and < 5uA low stand-by current.

10, 21 and 42sec 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.

PWM Vout1 and Vout2 drive speaker directly with 2 levels volume control.

D/A COUT with ramp-up ramp-down option to drive speaker through an external BJT.

Windows based development system and USB programmer support.

DESCRIPTION

Aplus’ aIVR3K is a 8-bit CPU based Voice chip series. It is fabricated with Standard CMOS

process with embedded voice storage OTP memory. It can store from 10 to 42sec 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 eight

programmable I/O pins. Key trigger and Parallel CPU trigger mode can be configured according to

different application requirements. User selectable triggering and output signal options provide

maximum flexibility to various applications. Fully integrated system oscillator, power-on reset, 8-

bit current mode D/A output and PWM direct speaker driving output to minimize external

components count. Two level volume control for PWM direct speaker driving output.

Part Number

Duration

Programmable IO

aIVR3K10

10 sec

4

aIVR3K21

21 sec

4

aIVR3K42

42 sec

8