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3K Series - 21 Sec OTP IC

3K Series - 21 Sec OTP IC
Model  : 3K 21
Price    : Rs. 40.00/-
Weight : 1.00 Grams

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     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 21sec 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.


  • Embedded OTP Memory and 8-bit MCU
  • 8 PIN DIP Package
  • Built-in oscillator and power on re-set circuits to reduce external components
  • 2.2V to 3.6V single power supply and <5mA low stand-by current
  • 10 Second voice duration at 6KHz 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 / ADPCM data compression
  • Voice group trigger options : Edge/Level - Hold/Un-hold - Retrigger/non-retrigger
  • Programmable I/Os
  • Timer intruppet and watch dog timer
  • PWM Vout1 and Vout2 drive speaker directly with 2 levels voulme control
  • D/A COUT with ramp up-down option to drive speaker through an external BJT
  • Programmer and Software available : System supports Windows XP and USB programmer support



  • Best suited for battery operated applications or DC regulated power applications