ISD17150EYI

Overview

The ISD17150EYI is a ChipCorder voice recording and playback integrated circuit manufactured by Nuvoton Technology Corporation. It supports analog single-ended microphone input and PWM speaker output with an audio frequency range of 4 to 12 kHz. The device offers recording durations between 33 and 100 seconds, powered by an internal oscillator. Operating voltage ranges from 2.4 V to 5.5 V, with a specified operating temperature range of -40°C to 85°C. It features automatic gain control and volume control, housed in a 28-TSOP surface-mount package.

Feature Summary

• Integrated analog-to-digital conversion for direct microphone interface without external ADC
• Built-in automatic gain control and volume adjustment capabilities
• Supports SPI and button interfaces for message sending and control

Applications

• Voice messaging systems
• Industrial announcement modules
• Consumer electronic voice prompts

Procurement Notes

Verify the specific suffix 'EYI' against official Nuvoton documentation to confirm the industrial temperature grade (-40°C to 85°C) and TSOP package variant. Confirm current production status as sources indicate this model may be discontinued or end-of-life. Ensure compatibility with system voltage requirements within the 2.4 V to 5.5 V range before procurement.

Selection Notes

Select the ISD17150EYI when industrial temperature stability is required, distinguishing it from commercial variants like the ISD17150EYR which operate at 0°C to 70°C. Verify that the 28-TSOP footprint matches the PCB design. Consider the 100-second maximum recording time and PWM output characteristics against application needs for audio fidelity and power consumption.

Part Context

This component belongs to the Nuvoton ChipCorder series, designed for standalone voice recording and playback. It integrates flash memory, ADC, DAC, and amplifier circuits into a single chip, reducing external component count compared to discrete solutions. The ISD17150 series provides a cost-effective solution for fixed-message applications requiring reliable voice storage.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other ISD17150 series variants (e.g., ISD17150EYR) only if temperature and packaging differences are acceptable. Consult Nuvoton technical support for current obsolescence management and recommended alternatives.