ISD2564 Datasheet | Winbond

DESCRIPTION Winbond’s ISD2500 Chip Corder® 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 patible, allowing plex 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 patible 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 addressable to handle multiple messages 100-year message retention (typical) 100,000 record cycles (typical) On-chip clock source Programmer support for play-only applications Available in die form, PDIP, SOIC and TSOP packaging Temperature options: die (0°C to +50°C) and package (0°C to +70°C) - - - - - - - - -2- ISD2532/40/48/64 3. BLOCK DIAGRAM Internal Clock XCLK Timing Sampling Clock ANA IN Amp 5-Pole Active Antialiasing Filter Decoders Analog Transceivers 256K Cell Nonvolatile Multilevel Storage Array ANA OUT MIC MIC REF AGC Pre Amp Automatic Gain Control (AGC) Power Conditioning 5-Pole Active Smoothing Filter SP + Mux Amp SP - Address Buffers Device Control VCCA VSSA VSSD VCCD A0 A1...