ISD5116SI

Overview

The ISD5116SI is a single-chip voice record/playback device from Nuvoton Technology Corporation, part of the ChipCorder series. It supports recording durations from 8 minutes 44 seconds to 17 minutes 28 seconds, depending on the sampling frequency. The device operates with a supply voltage of 2.7 V to 3.3 V and features an I2C serial interface for control and data transfer. It integrates analog functions including automatic gain control, volume control, and a speaker driver. The chip utilizes nonvolatile memory for zero-power storage and supports both analog voice and digital data storage within the same array.

Feature Summary

• Integrates fully functional voice recording and playback capabilities on a single chip without requiring external compression algorithms.
• Supports dual storage of both analog voice information and digital data within the same nonvolatile memory array.
• Features an I2C serial interface that minimizes pin count while allowing full addressability for multiple message management.
• Includes integrated audio processing components such as automatic gain control, summing amplifiers, and a power amplifier/speaker driver.

Applications

• Cellular phones for voice memo, answering machine, and call screening features
• Automotive communications systems including hands-free car kit interfaces
• GPS and navigation systems requiring portable messaging solutions

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Check for end-of-life status and available replacement parts if sourcing for new designs. Ensure proper handling of ESD-sensitive pins during installation. Confirm package type matches design requirements.

Selection Notes

Select based on required recording duration and sampling rate trade-offs. Higher sampling rates provide better audio quality but reduce total recording time. Ensure the host microcontroller supports the I2C protocol for communication. Verify power supply constraints align with the 2.7 V to 3.3 V operating range.

Part Context

The ISD5116SI belongs to the ISD5100 series of ChipCorder devices. It is an enhancement of the ISD5000 architecture, offering improved integration and lower power consumption. The SI suffix typically denotes a specific package variant, likely SOIC, compared to other options like TSOP or PDIP available in the series.

Replacement Considerations

Check for newer generations of ChipCorder devices from Nuvoton or Winbond. Verify pin compatibility and software register mapping if substituting with similar models. Consider availability and lead times for alternative single-chip voice recorders.