ISD91361RI

Overview

The ISD91361RI is a System-on-Chip audio component manufactured by Nuvoton Technology Corporation, designed for voice recording and playback applications. It integrates a microcontroller unit with dedicated audio processing capabilities within a single package. The device supports direct digital voice storage and retrieval without requiring external memory or complex interface logic. It utilizes an LQFP package configuration to facilitate surface-mount assembly in compact electronic designs. The chip operates as a standalone solution for simple voice message generation tasks.

Feature Summary

• Integrates microcontroller and audio processing functions into a single system-on-chip architecture
• Supports direct digital voice recording and playback operations without external memory requirements
• Designed for straightforward integration into embedded voice message systems

Applications

• Voice message modules for consumer electronics
• Simple announcement systems in industrial equipment
• Interactive voice response components in automated devices

Procurement Notes

This product is officially classified as obsolete by the manufacturer and is no longer in active production. Supply availability is limited to existing stock from distributors or secondary market sources. Verification of part authenticity and condition is critical when sourcing from non-authorized channels. Designers should consider end-of-life implications for long-term projects and evaluate alternative replacement components that maintain functional compatibility.

Selection Notes

Engineers selecting this component must account for its obsolete status and potential supply chain constraints. The integrated nature of the chip simplifies circuit design by reducing external component count, but limits flexibility for custom audio processing algorithms. Compatibility with specific voltage levels and clock configurations should be verified against target application requirements before implementation.

Part Context

Nuvoton Technology Corporation specializes in microcontroller and audio IC solutions, serving industrial, automotive, and consumer markets. The company provides semiconductor products that integrate digital and analog technologies for cost-effective applications. This component belongs to their voice recording and playback series, targeting applications requiring simple, reliable audio functionality without complex software overhead.

Replacement Considerations

As the ISD91361RI is obsolete, designers should identify equivalent voice record/playback ICs from current product lines. Substitutes must match pinout compatibility, voltage specifications, and recording capacity requirements. Functional testing of replacement parts is recommended to ensure seamless integration into existing hardware designs.