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MS87V1021 Datasheet Recording and Playback IC

Manufacturer: OKI Electric

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General Description

The MS87V1021 is a single chip recording and playback IC that is controlled by the microcontroller in serial mode, compresses voice with the 4-bit OKI ADPCM algorithm or 4-bit OKI ADPCM2 algorithm with high tone quality, and has 2-Mbit DRAM in which recorded data is stored and 512-Kbit mask ROM in which fixed messages reside.

The MS87V1021 includes such

Overview

OKI Semiconductor MS87V1021 Recording and Playback IC with Built-in 2-Mbit DRAM PEDS87V1021-02 Issue Date: Feb.

Key Features

  • as Normal Recording and Playback, Delayed playback, Retroactive playback, Fast forwarding, and Rewinding. The internal memory in which voice data is stored allows a recording/playback system to be constructed merely by externally connecting it to a microphone, a speaker driving amplifier, and a speaker.

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