ISD1750SY01

Overview

The ISD1750SY01 is a multi-message single-chip voice record and playback device from the ISD1700 series. It features user-selectable message durations ranging from 33 to 100 seconds, depending on the sampling frequency. The sampling frequency can be adjusted between 4 kHz and 12 kHz using an external resistor. Operating voltage spans 2.4 V to 5.5 V. The device supports standalone push-button or microcontroller SPI modes. Key components include an on-chip oscillator, microphone preamplifier with AGC, auxiliary analog input, Multi-Level Storage array, PWM Class D speaker driver, and current/voltage output.

Feature Summary

• Integrated proprietary message management system for self-managing address locations in standalone mode
• Dual operating modes supporting simple push-button control or full microcontroller SPI interface access
• Non-volatile message storage using patented Multi-Level Storage technology without digital compression
• Optional vAlert feature for indicating new messages via external LED flashing

Applications

• Electronic systems requiring integrated voice messaging
• Battery-powered applications due to wide voltage range and power-down capabilities
• Line-powered electronic devices needing flexible audio recording and playback
• Push-button controlled voice interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature rating, and special features like vAlert support. Ensure compatibility with required sampling frequencies and message duration constraints defined by the external oscillator resistor selection.

Selection Notes

Select based on required message duration and sampling frequency combinations provided in the datasheet tables. Consider the operating environment temperature range when choosing between commercial and industrial variants. Verify that the chosen package type meets the physical layout requirements of the target application.

Part Context

This component belongs to the ISD1700 ChipCorder series, which offers high-quality, fully integrated voice recording and playback solutions. The series utilizes Winbond's patented Multi-Level Storage technology to store audio data directly in solid-state memory, ensuring superior voice reproduction quality compared to compressed formats.

Replacement Considerations

Other models within the ISD1700 series offer different message duration ranges. Verify pinout compatibility and functional equivalence before substitution. Check if alternative part numbers support the same packaging options and temperature ratings required for the specific application.