Smart Home Audio

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ISD1620BSYI View larger

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Nuvoton’s ISD1600B Series ChipCorder is a single-message, single chip, record/playback solution with selectable durations from 6.6 to 40 seconds. The CMOS device includes an on-chip oscillator (via external control), microphone preamplifier, automatic gain control, anti-aliasing filter, Multi-Level Storage (MLS) array, smoothing filter, PWM Class D speaker amplifier for standard 8 speaker or buzzer, plus an extra current output. Recording is stored into the embedded Flash memory cells, providing zero-power message storage. This unique single-chip solution utilizes Nuvoton’s patented MLS technology. Therefore, voice or audio data are stored directly into the memory in their natural form without any compressions alike digital approach, providing high-quality, solid-state audio reproduction. The device enters into standby mode automatically once an operation is completed for power saving purposes.
Moreover, a minimum record/playback subsystem can be configured with a microphone, a speaker or buzzer, several passive components, two push buttons, and a power source.


  • User-friendly single-chip, single-message voice record & playback devices
  • Wide operating voltage: 2.4V to 5.5V
  • Push-button interface
  • Record is level-triggered
  • Playback is either edge- or level-triggered
  • Selectable sampling frequency controlled by an external oscillator resistor
  • Sampling Frequency 12 kHz 8 kHz 6.4 kHz 5.3 kHz 4 kHz
  • ISD1620B 13.3 secs 20 secs 25 secs 30 secs 40 secs
  • Variable duration selected by external oscillator resistor
  • Message and operation indicators
  • Enters standby mode immediately after a record or playback cycle
  • Dual output channels , PWM Class D speaker  and AUD single-ended current output
  • Package options: Leaded and Lead-free packaged units
  • Available in die and 16L 150mil SOIC
  • Temperature options:
  • Commercial: 0°C to +50°C (Die); 0°C to +70°C (Packaged)
  • Industrial: -40°C to +85°C (Packaged)

For more details and documents, please link to Nuvoton Official Website GO

Volume discounts

QuantityDiscountYou Save
1008%Up to$46.00
Part No.I1620BSYI
Duration6-40 sec
Sample Rate (KHz)4~12
Operating Voltage (V)2.4 to 5.5
Development ToolsI16-COB20
PackageSOIC 16 DIE
StatusMass Production

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