ISD2575SY

Overview

The ISD2575SY is a voice record and playback integrated circuit manufactured by Nuvoton Technology Corporation. It supports multiple message recording with a maximum duration of 75 seconds. The device utilizes a pushbutton interface for operation control. Input signals are accepted as analog single-ended data from a microphone. The output signal is delivered via PWM to a speaker. The sampling frequency for audio processing is specified at 6.4kHz. The component is housed in a 28-SOIC package.

Feature Summary

• Supports multiple message recording and playback functionality
• Operates using a direct pushbutton interface for user control
• Accepts analog single-ended input signals from microphones
• Delivers audio output through PWM speaker drive capability

Applications

• Voice messaging systems
• Announcement modules
• Interactive voice response units
• Educational toy electronics

Procurement Notes

Verify the specific suffix designation against official Nuvoton documentation to confirm pinout and electrical characteristics, as variations may exist within the series. Confirm RoHS compliance status through current manufacturer declarations. Check product lifecycle status, as this model is listed as obsolete; ensure availability of alternative sources or compatible replacements for long-term production needs.

Selection Notes

Select this component when fixed-duration voice recording up to 75 seconds is required without complex digital interfaces. The pushbutton control scheme simplifies hardware design compared to serial communication options. Consider the 6.4kHz sampling rate limitations for audio fidelity requirements. Evaluate the 28-SOIC footprint constraints during PCB layout planning to ensure adequate space for the package dimensions.

Part Context

This part belongs to the ISD2500 series of voice record and playback ICs designed by Nuvoton Technology Corporation. The series provides dedicated solutions for audio applications requiring straightforward integration. The ISD2575SY represents a specific variant within this family, offering defined storage capacity and interface characteristics tailored for basic voice message applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Nuvoton Technology Corporation directly for current recommended alternatives or successor components suitable for voice recording applications.