ISD1620BSYI01

Overview

The ISD1620BSYI01 is a single-message voice recording and playback integrated circuit from Nuvoton's ChipCorder series. It supports a recording duration of approximately 13.3 to 40 seconds with an internal oscillator. The device operates on a supply voltage range of 2.4 V to 5.5 V and features automatic gain control. It utilizes SPI and button interfaces for control, accepting analog single-ended microphone input and providing analog single-ended PWM speaker output. The component is housed in a 28-SOIC package (0.295 inch width) and is rated for operation between -40°C and 85°C.

Feature Summary

• Single-message voice recording and playback capability
• Integrated automatic gain control for audio optimization
• Internal oscillator eliminates external clock requirements

Applications

• Voice message modules
• Simple audio prompts
• Educational toys

Procurement Notes

Verify the exact part number suffix against official Nuvoton documentation, as variations may indicate different packaging or temperature grades. Confirm current availability status, as this component may be subject to discontinuation notices. Ensure compatibility with existing system voltage levels and interface protocols before procurement.

Selection Notes

Select this component for applications requiring simple, single-message playback without complex microcontroller integration. Verify that the 28-SOIC package fits the target PCB layout. Consider the 40-second maximum duration limit when designing the application logic. Check for newer replacements if long-term supply stability is required.

Part Context

This IC belongs to the Nuvoton ChipCorder family, which provides standalone voice recording solutions. These devices are designed to replace discrete memory and audio circuits, simplifying design for voice-enabled products. The series typically offers various duration options and interface configurations to suit different cost and performance requirements.

Replacement Considerations

Official manufacturer-recommended replacements include I2361YYI and I3800FYI. Verify pinout compatibility and software register mapping before substituting. Ensure the replacement part meets the same voltage and temperature specifications.