ISD1820 VOICE RECORDER MODULE

SPECIFICATION:

• Push‐button interface, playback can be edge or level activated
• Automatic power‐down mode
• On‐chip 8Ω speaker driver
• Signal 3V Power Supply
• Can be controlled both manually or by MCU
• Sample rate and duration changeable by replacing a single resistor
• Record up to 20 seconds of audio

DESCRIPTION:

The ISD1820 is a record and playback module that can record a sound and play it whenever required. The module comes with a microphone to record the sound and an 8-ohm speaker to play the recorded sound. By default, the recording time is 8 seconds but can be extended up to 20 seconds by replacing a single resistor. The operating voltage is from 3V to 5V.

Applicable for  true single‐chip voice recording, no‐volatile storage, and playback capability around 10 seconds.