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Technical Documents

ISD1820 Official Datasheet ISD1820 Technical Datasheet ISD1820 Product Data Sheet

Application Resources

Sound playback Appnotes ISD1820 Voice/Audio Record and Playback Module Review + Tutorial

EMA-00009-A

(Last updated) Jul 22, 2026

Audio Playback

Audio Recorder ISD1820 10sec Playback

Subcategory
EMA - Output: Actuators

Description

The ISD1820 Voice Recording & Playback Module supports up to 10 seconds of audio recording stored in non-volatile memory. It features an onboard electret microphone, push-button recording and playback controls, and support for external triggering through a microcontroller. Ideal for Arduino projects, voice prompts, alarms, interactive electronics, educational kits, and sound playback applications.

Manufacturer Details

Manufacturer Part Number
Nuvoton Technology Corporation ISD1820
Generic / OEM ISD1820-Voice-Rec-Module

Technical Specifications

IC Chip ISD1820
Operating Voltage (VDC) 3 – 5
Recording Duration Up to 10 seconds
Memory Type Non-Volatile Analog Flash
Microphone Onboard Electret Microphone
Speaker 8 Ω, 0.5W
Speaker Cable Length (cm) 20
Speaker Diameter (mm) 40
Control Options Push Buttons or Microcontroller Digital Pin
Interface 2.54 mm Header Pins
Length (mm) 42
Width (mm) 33.5
Height (mm) 11.5
Weight (g) 20
Shipping Weight 0.022 kg
Shipping Dimensions (L × W × H cm) 8 × 6 × 3

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