ISD2540 Datasheet | ISD

FEATURES - - - Easy-to-use single-chip voice Record/ Playback solution High-quality, natural voice/audio reproduction Manual switch or microcontroller patible Playback can be edge- or levelactivated 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 - - - - ISD2500 SERIES SUMMARY Part Number ISD2560 ISD2575 ISD2590 ISD25120 Duration (Seconds) 60 75 90 120 Input Sample Rate (KHz) 8.0 6.4 5.3 4.0 Typical Filter Pass Band (KHz) 3.4 2.7 2.3 1.7 ISD2532- ISD2540- ISD2548- ISD2564- 32 40 48 64 8.0 6.4 5.3 4.0 3.4 2.7 2.3 1.7 Information Storage Devices, Inc. - Advance information: ISD2532/40/48/64 devices. 1- 79 ISD2500 Series Product Data Sheets 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 patible, allowing plex 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 ISD's patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing highquality, solid-state...