ISD17180EYI

Overview

The ISD17180EYI is a voice record and playback integrated circuit from the ChipCorder series by Nuvoton Technology Corporation. It supports recording durations of 120 to 360 seconds with multiple message capabilities. The device features an internal oscillator and operates on a supply voltage range of 2.4 V to 5.5 V. It utilizes SPI and button interfaces for control, accepting analog single-ended microphone input and providing analog single-ended or PWM speaker output. The component is housed in a 28-SOIC package and supports sampling frequencies between 4 kHz and 12 kHz.

Feature Summary

• Integrated automatic gain control and volume adjustment functions
• Supports direct connection to microphones and speakers without external codec
• Enables flexible message management through SPI or hardware button controls

Applications

• Voice messaging systems
• Automated announcements
• Security alarm voice prompts

Procurement Notes

Verify the specific suffix 'EYI' against official datasheets to confirm pinout and package dimensions, as variations exist within the ISD17180 family. Confirm end-of-life status and availability of recommended replacements like I2361YYI if long-term supply is required. Ensure compatibility with existing SPI protocols and power supply rails before procurement.

Selection Notes

Select this model when a fixed duration of up to 360 seconds is sufficient for the application. Compare against the ISD17150 series if shorter recording times are acceptable for cost reduction. Verify that the 28-SOIC package fits the PCB layout constraints. Consider the internal oscillator accuracy requirements versus external clock needs for precise audio timing.

Part Context

This component belongs to the ISD1700 series of single-chip voice record and playback devices. These parts are designed for applications requiring simple voice interaction without complex digital signal processing. The series typically offers various recording time options and interface configurations to suit different consumer and industrial electronic products.

Replacement Considerations

The I2361YYI is listed as a manufacturer-recommended replacement. Verify functional equivalence regarding recording time and interface compatibility before substitution.