ISD4003-06MEYI

Overview

The ISD4003-06MEYI is a single-chip voice record and playback device from the ISD ChipCorder series, manufactured by Nuvoton Technology Corporation. It provides 6 minutes of recording duration at a sampling frequency of 5.3 kHz with a typical filter pass band of 2.3 kHz. The device operates on a single 3-volt supply (2.7V to 3.3V) and features low-power consumption, with typical operating currents of 15 mA during playback and 25 mA during recording, alongside a standby current of 1 µA. It utilizes non-volatile multilevel Flash memory for message storage, supporting 100K record cycles and 100-year retention. Control is managed via an SPI interface, and it includes an AutoMute feature for noise attenuation.

Feature Summary

• Single-chip solution integrating analog transceivers, filters, and high-density multilevel Flash memory for direct analog signal storage without digitization or compression.
• SPI-based microcontroller interface allows fully addressable control for multiple messages, including record, playback, and message cueing operations.
• AutoMute feature minimizes background noise during silence periods by attenuating the output signal when no audio input is detected.
• On-chip oscillator maintains clock stability, with provisions for external clock input via XCLK pin for enhanced precision in industrial applications.

Applications

• Cellular phones and portable communication devices requiring compact voice messaging capabilities.
• Industrial control systems needing reliable, non-volatile voice alerts or status announcements.
• Consumer electronics such as toys, appliances, and security systems utilizing simple voice prompts.

Procurement Notes

Verify the specific suffix 'EYI' against official Nuvoton documentation to confirm package type and temperature range. The datasheet lists SOIC and PDIP packages with commercial and industrial temperature options. Ensure the ordering code matches the required environmental specifications and physical form factor for your design.

Selection Notes

Select this model for applications requiring exactly 6 minutes of voice storage at a 5.3 kHz sampling rate. Consider the ISD4003-04M, -05M, or -08M variants if different durations or sampling frequencies are needed. Evaluate power constraints, as the device draws up to 25 mA during recording. Ensure the host system supports SPI communication for proper configuration and control.

Part Context

The ISD4003 series belongs to Nuvoton's ChipCorder family, designed for high-quality, low-cost voice recording and playback. These devices use patented multilevel storage technology to store analog speech directly into Flash memory. The series offers various durations (4, 5, 6, and 8 minutes) to suit different application needs while maintaining a small footprint and low power consumption.

Replacement Considerations

Direct replacements within the same series include ISD4003-04M, ISD4003-05M, and ISD4003-08M, which offer different recording durations and sampling rates but share similar interfaces and functionality. Verify pin compatibility and software compatibility when substituting these variants.