ISD4004-08MSYI

Overview

The ISD4004-08MSYI is a single-chip voice record/playback solution from the ISD4004 series, designed for portable applications. It operates on a single 3V supply and provides an 8-minute recording duration at an 8.0 kHz sampling frequency with a typical filter passband of 3.4 kHz. The device utilizes direct analog storage in Flash memory, eliminating the need for A/D conversion. Key electrical parameters include a typical operating current of 15 mA during playback and 25 mA during recording, with a standby current of 1 µA. It supports SPI or Microwire interfaces and is available in commercial temperature ranges.

Feature Summary

• Direct analog storage technology preserves natural voice quality without digitization
• Integrated AutoMute feature attenuates background noise during silence periods
• Non-volatile Flash memory retains messages for up to 100 years without power
• Supports multiple message management via fully addressable memory rows

Applications

• Cellular phones and mobile communication devices
• Portable consumer electronics requiring voice messaging
• Industrial control systems with speech feedback requirements

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure the component matches the required voltage range and interface protocol for your system design before procurement.

Selection Notes

Select this model when an 8-minute recording capacity at 8.0 kHz sampling rate is required. Consider the industrial temperature range if operation exceeds standard commercial limits. Verify that the host microcontroller supports the necessary SPI or Microwire serial interface protocols for control.

Part Context

This component belongs to the ISD4004 ChipCorder series by Nuvoton Technology Corporation. The series offers various durations (8, 10, 12, and 16 minutes) and sampling rates to balance audio quality with storage time. It is part of a family of CMOS-based voice recording solutions utilizing multilevel Flash memory technology.

Replacement Considerations

Check for other variants within the ISD4004 series such as ISD4004-10M or ISD4004-12M if different recording durations are needed. Ensure any substitute maintains the same 3V supply requirement and compatible SPI/Microwire interface timing.