ISD4003-04MP

Overview

The ISD4003-04MP is a single-chip voice record/playback device from the ISD4003 series, offering a 4-minute recording duration. It operates on a single 3V supply with typical operating currents of 15 mA during playback and 25 mA during recording, while standby current is 1 µA. The device features an internal oscillator and supports SPI or Microwire interfaces for microcontroller control. Key electrical parameters include an 8.0 kHz sampling frequency and a 3.4 kHz filter passband. It utilizes high-density multilevel Flash memory for non-volatile storage, retaining messages for up to 100 years and supporting 100,000 record cycles.

Feature Summary

• Direct analog storage technology preserves natural voice quality without quantization noise
• AutoMute feature attenuates background noise during silence periods
• Fully addressable multiple message handling via serial interface
• Zero-power message retention in non-volatile Flash memory

Applications

• Cellular phones and portable communication devices
• Multiple message answering systems
• Industrial control equipment announcements
• Security alarm system voice prompts

Procurement Notes

Verify the specific package type (SOIC, PDIP, or TSOP) required for your design, as the base model number may not specify it. Confirm the temperature grade (Commercial, Extended, or Industrial) matches your environmental constraints. Check for RoHS compliance status if required by your manufacturing standards. Ensure the supplier provides genuine Nuvoton/Winbond components to guarantee reliability.

Selection Notes

Select this component when a fixed 4-minute recording time is sufficient for the application. Choose based on the required sampling rate of 8.0 kHz for optimal voice clarity within that duration. Consider the available package options (SOIC, PDIP, TSOP) for PCB layout compatibility. Verify that the host microcontroller supports the necessary SPI or Microwire protocol for control.

Part Context

The ISD4003-04MP belongs to the ISD4003 ChipCorder series, which includes variants with 5, 6, and 8-minute durations. These devices are designed for low-power, single-supply applications requiring high-quality voice storage. The series uses patented multilevel Flash technology to store analog samples directly, distinguishing it from digital compression-based solutions.

Replacement Considerations

ISD4003-05MP, ISD4003-06MP, and ISD4003-08MP offer longer durations but lower sampling frequencies. ISD4002 series parts provide shorter durations. Ensure pinout and interface compatibility remain consistent across these variants before substitution.