ISD2360SYI

Overview

The ISD2360SYI is a 3-channel digital ChipCorder IC from Nuvoton Technology Corporation, housed in a 16-lead SOP package. It provides single-chip storage and playback of high-quality audio with a maximum duration of 64 seconds using 8kHz/4-bit ADPCM compression within 2Mbit flash memory. The device features an integrated Class D speaker driver capable of delivering up to 1W into an 8Ω load at 5V. It supports sampling frequencies ranging from 4kHz to 32kHz and operates on a supply voltage between 2.4V and 5.5V. Control is achieved via SPI interface or standalone GPIO triggers.

Feature Summary

• Supports concurrent playback and mixing of up to three independent audio channels.
• Integrates a Class D PWM speaker driver for direct connection to speakers or buzzers without external components.
• Enables standalone operation through programmable Voice Macros triggered by six general-purpose I/O pins.
• Includes internal flash memory with sector erase capabilities and integrated program verification.

Applications

• Automotive systems requiring voice prompts and alerts
• Medical-alert devices needing reliable audio signaling
• Instrumentation equipment for status feedback
• Point-of-purchase displays for promotional audio

Procurement Notes

Verify the specific suffix SYI confirms the 16-lead SOP package variant when sourcing. Confirm RoHS compliance and industrial temperature range requirements (-40°C to 85°C) match the application environment. Check for any recent Product Change Notices regarding packaging materials or assembly processes before finalizing orders.

Selection Notes

Select this model for designs requiring multi-channel audio mixing and standalone GPIO triggering without a microcontroller. Ensure the host system supports SPI communication if dynamic control is needed. Verify that the required audio duration fits within the 64-second limit based on the chosen compression algorithm and sample rate.

Part Context

This component belongs to the ISD2360 series of ChipCorder devices, which are designed for high-quality digital audio playback. The SYI suffix specifically denotes the Small Outline Package (SOP) variant, distinguishing it from the QFN32 package options available in the same family. It shares core functionality with other series members but differs in physical footprint and pin configuration.

Replacement Considerations

Direct substitutes include other ISD2360 variants such as ISD2360YYI, which offers the same electrical specifications but utilizes a 32-QFN package. Designers must account for differences in thermal dissipation and PCB layout when switching between SOP and QFN packages.