ISD4003-05MPY

Overview

The ISD4003-05MPY is a single-chip voice record/playback device from the ISD4003 ChipCorder series by Nuvoton Technology Corporation. It provides approximately 5 minutes of recording duration at a sampling frequency of 6.4 kHz, with a typical filter pass band of 2.7 kHz. The device operates on a single 3-volt supply and features low-power consumption, including a standby current of 1 µA. It utilizes high-density multilevel Flash memory for non-volatile storage, supporting 100K record cycles and 100-year message retention. Control is managed via an SPI or Microwire serial interface.

Feature Summary

• Direct analog storage technology preserves natural voice quality without digitization or compression algorithms.
• Integrated AutoMute feature attenuates background noise during silence periods to improve audio clarity.
• On-chip oscillator and filters eliminate the need for external clocking components in standard applications.
• Fully addressable memory architecture allows for multiple message handling and flexible system integration.

Applications

• Portable consumer electronics requiring voice messaging capabilities
• Microcontroller-based systems needing non-volatile audio storage
• Automotive lane departure warning systems
• Industrial equipment with voice prompt requirements

Procurement Notes

Verify the specific suffix 'MPY' against official Nuvoton documentation to confirm package type and temperature grade. Ensure compatibility with existing SPI interface configurations. Check for end-of-life status or alternative sourcing options if production continuity is required. Confirm voltage levels match the 2.7V to 3.3V operating range.

Selection Notes

Select this model when a 5-minute duration at 6.4 kHz sampling rate is required. Consider the ISD4003-04M for shorter durations with higher quality or ISD4003-08M for longer playback times. Evaluate power constraints as the device draws up to 25 mA during recording. Ensure the application supports the SPI communication protocol for control and data transfer.

Part Context

The ISD4003 series belongs to Nuvoton's ChipCorder family, designed for direct analog storage solutions. This series replaces older digital voice chips by offering higher fidelity and simpler integration. The ISD4003-05MPY is part of a lineup varying by duration (4, 5, 6, 8 minutes) and package type, catering to diverse portable and industrial audio applications.

Replacement Considerations

Check for ISD4003-05MSIR or other variants within the same series for pin-compatible alternatives. Verify if the specific package form factor of the MPY suffix matches the target PCB footprint. Ensure functional equivalence regarding SPI commands and electrical characteristics before substitution.