ISD1750PYI01

Overview

The ISD1750PYI01 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, with sampling frequencies adjustable between 4 kHz and 12 kHz via an external resistor. The device operates on a supply voltage of 2.4 V to 5.5 V and supports both standalone push-button and SPI microcontroller modes. Key electrical parameters include a typical standby current of 1 µA, 8-level volume control, and dual output channels comprising a PWM Class D speaker driver and a configurable analog output.

Feature Summary

• Integrated message management system enabling self-managed address locations for multiple messages in standalone mode.
• Dual operating modes supporting simple push-button control or full microcontroller configuration via SPI interface.
• On-chip non-volatile Multi-Level Storage (MLS) array providing zero-power message retention without digital compression.
• Built-in microphone preamplifier with Automatic Gain Control (AGC) and auxiliary analog input capabilities.

Applications

• Voice-enabled educational toys and learning aids
• Automotive warning systems and door chimes
• Security alarm announcements and intercoms
• Consumer electronics with voice prompts

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against datasheet specifications before integration. Ensure environmental conditions match industrial ratings if required. Check for lead-free compliance documentation corresponding to the 'Y' suffix. Validate ordering information against official product change notices.

Selection Notes

Select this model when specific duration requirements fall within the 33 to 100-second range at varying sampling rates. Choose the SOIC package for surface-mount assembly needs. Consider the industrial temperature rating for harsh environments. Evaluate power consumption constraints against the low standby current specification. Verify interface compatibility with either standalone buttons or existing SPI controllers.

Part Context

This component belongs to the Winbond ISD1700 ChipCorder series, representing a family of fully integrated voice recording solutions. The series utilizes patented Multi-Level Storage technology to store audio data directly in solid-state memory. It is designed for applications requiring high-quality voice reproduction with minimal external components.

Replacement Considerations

ISD1750SYI01: Identical functional specifications with SOIC packaging instead of PDIP.

FAQ

How is the sampling frequency adjusted?

The sampling frequency is adjusted by connecting an external resistor to the ROSC pin. Specific resistance values correspond to frequencies ranging from 4 kHz to 12 kHz.

What is the function of the vAlert feature?

The vAlert feature allows the device to flash an external LED to indicate the presence of a new message, serving as a visual notification mechanism.

Can the device operate without a microcontroller?

Yes, the ISD1750PYI01 supports a standalone push-button mode where operations like record, play, erase, and forward are controlled directly by hardware inputs.