ISD2540

ISD2532/40/48/64 SINGLE-CHIP, MULTIPLE-MESSAGES, VOICE RECORD/PLAYBACK DEVICE 32-, 40-, 48-, AND 64-SECOND DURATION -1- Publication Release Date: June 2003 Revision 1.0 ISD2532/40/48/64 1. GENERAL DESCRIPTION Winbond’s ISD2500 ChipCorder® Series provide high-quality, single-chip, Record/Playback solutions for 32- to 64-second messaging applications. The CMOS devices include an on-chip oscillator, microphone preamplifier, automatic gain control, antialiasing filter, smoothing filter, speaker amplifier, and high density multi-level storage array. In addition, the ISD2500 is microcontroller compatible, allowing complex messaging and addressing to be achieved. Recordings are stored into on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through Winbond’s patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing high-quality, solid-state voice reproduction. 2. FEATURES Single 5 volt power supply Single-chip with duration of 32, 40, 48, or 64 seconds. Easy-to-use single-chip, voice record/playback solution High-quality, natural voice/audio reproduction Manual switch or microcontroller compatible Playback can be edge- or level-activated Directly cascadable for longer durations Automatic power-down (push-button mode) - Standby current 1 µA (typical) Zero-power message storage - Eliminates battery backup circuits Fully add...