ISD1790X

Overview

The ISD1790X is a voice recording and playback integrated circuit manufactured by Nuvoton Technology Corporation. It supports up to 90 seconds of audio duration. The component is available in multiple package configurations, including a 28-pin SOIC variant (ISD1790PYI01) and a 28-pin DIP variant (ISD1790PYI01). These packages facilitate integration into various electronic systems requiring voice message functionality.

Feature Summary

• Integrated voice recording and playback capabilities within a single IC
• Supports approximately 90 seconds of continuous audio storage
• Available in standard surface-mount and through-hole packaging options

Applications

• Voice message modules for consumer electronics
• Industrial alarm and notification systems
• Automotive warning devices

Procurement Notes

Verify the specific suffix code to confirm the exact package type, as the base model number corresponds to different physical form factors such as SOIC or DIP. Confirm the manufacturer designation, as some listings associate this part with Winbond while others attribute it to Nuvoton. Ensure the required audio duration meets the 90-second specification before ordering.

Selection Notes

Select the appropriate package variant based on the PCB assembly method, choosing between surface-mount SOIC or through-hole DIP formats. Verify that the system design accommodates the 28-pin footprint associated with the 90-second capacity version. Check for any specific temperature range requirements if operating in extreme environments.

Part Context

This component belongs to the ISD1790 series of voice recorders. The series provides simple interface solutions for voice applications without requiring external microcontrollers. The ISD1790X represents the core device family offering fixed-duration voice storage.