ISD4004-12MPY

Overview

The ISD4004-12MPY is a single-chip voice record/playback device from the ISD4004 ChipCorder series, manufactured by Nuvoton Technology Corporation. It utilizes patented multilevel Flash memory to store analog audio signals directly without digitization or compression. This specific variant offers a recording duration of 12 minutes at a sampling frequency of 5.3 kHz. The device operates on a single 3-volt supply and features an SPI interface for microcontroller control. 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 commercial temperature ranges (0°C to +70°C) and industrial ranges (-40°C to +85°C).

Feature Summary

• Direct analog storage technology preserves natural voice quality without digital compression artifacts.
• Integrated AutoMute feature attenuates background noise during silence periods.
• Non-volatile Flash memory retains messages for up to 100 years without power.
• Supports fully addressable multiple message handling via SPI or Microwire interfaces.

Applications

• Portable consumer electronics requiring high-quality voice messaging.
• Industrial automation systems needing reliable speech prompts.
• Security and alarm systems utilizing recorded status announcements.

Procurement Notes

Verify the exact suffix 'PY' against the manufacturer's official ordering guide to confirm package type and temperature grade specifications. Ensure compatibility with the required voltage range of 2.7V to 3.3V. Confirm that the selected variant meets the specific thermal requirements for your application environment before finalizing procurement.

Selection Notes

Select the ISD4004-12MPY when a 12-minute recording duration at 5.3 kHz sampling rate is required. Consider this part if direct analog storage is preferred over compressed formats for superior audio fidelity. Evaluate the trade-off between sampling frequency and duration, as higher frequencies reduce available recording time. Ensure the system design accommodates the separate analog and digital ground requirements specified in the datasheet.

Part Context

The ISD4004 series belongs to Nuvoton's ChipCorder family of single-chip voice recorders. These devices are designed for applications where low component count and high audio quality are critical. The series includes variants with 8, 10, 12, and 16-minute durations, allowing designers to choose based on specific memory and timing constraints within portable or embedded systems.

Replacement Considerations

Check for other ISD4004 variants (e.g., ISD4004-08M, ISD4004-10M, ISD4004-16M) if different recording durations are acceptable. Verify pinout compatibility and software command set similarities across the series to ensure seamless integration without hardware redesign.