ISD17240PYI01

Overview

The ISD17240PYI01 is a multi-message single-chip voice record and playback device from the ISD1700 series. It features on-chip Flash memory for zero-power storage without digital compression. The device supports standalone push-button or SPI microcontroller modes. Operating voltage ranges from 2.4 V to 5.5 V, with an industrial temperature range of -40°C to +85°C. Sampling frequency is selectable between 4 kHz and 12 kHz via an external resistor. Message duration reaches up to 480 seconds at 4 kHz. It includes differential microphone inputs with AGC, PWM Class D speaker outputs, and configurable analog outputs.

Feature Summary

• Integrated message management system enabling simple push-button operation with automatic power-down.
• Dual operating modes: Standalone mode for basic control and SPI mode for full microcontroller programmability.
• Direct drive capability for 8-ohm speakers or buzzers via differential PWM Class D outputs.
• On-chip oscillator and Automatic Gain Control (AGC) for simplified circuit design and consistent audio levels.

Applications

• Automated voice prompts in electronic systems
• Multi-message answering machines
• Voice-controlled appliances and toys
• Industrial equipment status alarms

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and lead-free status. Confirm availability as product lifecycles may change. Ensure the selected sampling frequency resistor matches the desired recording duration requirements for the application.

Selection Notes

Select this model when maximum message duration within the ISD1700 family is required. Choose based on the necessary balance between sampling frequency and recording time. Verify that the 28-pin SOIC package fits the PCB layout constraints. Ensure the host system can provide the required 2.4V to 5.5V supply voltage.

Part Context

This component belongs to the Winbond ISD1700 ChipCorder series, which utilizes Multi-Level Storage (MLS) technology. The series offers various duration options ranging from 20 to 480 seconds. The '240' designation indicates the longest duration variant in the standard lineup. The 'P' suffix denotes the Plastic Dual Inline Package (PDIP), while 'Y' indicates lead-free packaging.

Replacement Considerations

Other models in the ISD1700 series such as ISD17210 or ISD17180 offer shorter durations but share identical pinouts and functionality. Substitution requires verifying that the reduced message capacity meets the application needs. Different package suffixes like 'E' (TSOP) or 'S' (SOIC) are electrically compatible but require different footprints.