Integrated Circuits Inc.

aIVR Series

Nov 06, 2008

2

FEATURES

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Standard CMOS process.

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Embedded EPROM.

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Embedded 8-bit MCU.

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10, 21, 42 and 85sec voice duration at 6 KHz sampling with 4-bit ADPCM compression.

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Combination of voice building blocks to extend playback duration.

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Table entries are available for voice block combinations.

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User selectable PCM or ADPCM data compress.

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Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger.

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Programmable I/Os, Timer Interrupt and Watch Dog Timer.

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Built-in oscillator with fixed Rosc, software control sampling frequency

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

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PWM Vout1 and Vout2 drive speaker directly.

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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

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