GENERAL DESCRIPTION
Information Storage Devices ISD2500 Chip Corder® Series provides high-quality, single-chip Record/Playback solutions for 32- to 120-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 in on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through ISDs patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing high quality, solid-state voice reproduction.

FEATURES
• 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
• Single-chip durations of 32*, 40*, 48*, 64*, 60, 75, 90, and 120 seconds
• 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 addressable to handle multiple messages
• 100-year message retention (typical)
• 100,000 record cycles (typical)
• On-chip clock source
• No algorithm development required
• Single +5 volt power supply
• Available in die form, DIP, SOIC, and
   TSOP packaging
• Industrial temperature (-40°C to +85°C)
   versions available