ISD17210PYI01

Overview

The ISD17210PYI01 is a multi-message single-chip voice record and playback device from the Winbond ISD1700 series. It utilizes Multi-Level Storage (MLS) technology to store audio data directly in on-chip Flash memory without digital compression, ensuring high-quality voice reproduction. The device supports selectable message durations ranging from 26 seconds to 480 seconds depending on the sampling frequency, which can be adjusted from 4 kHz to 12 kHz via an external resistor. Operating voltage spans 2.4 V to 5.5 V. It features dual operating modes: standalone push-button control and microcontroller SPI interface. Key components include a microphone preamplifier with Automatic Gain Control (AGC), PWM Class D speaker driver, and configurable analog outputs.

Feature Summary

• Integrated message management system enabling simple push-button operation for record, play, erase, and forward functions with automatic power-down.
• Dual input channels supporting differential microphone signals with AGC and single-ended auxiliary analog inputs for recording or feed-through.
• Dual output capabilities including a PWM Class D speaker driver for direct 8 Ω speaker connection and configurable current/voltage analog outputs.
• Built-in security and status features such as vAlert LED indication for new messages, customizable sound effects, and chip lock bits.

Applications

• Electronic greeting cards and toys requiring simple voice interaction
• Industrial control panels and automated announcement systems
• Security alarm systems with voice verification or alert messages
• Consumer appliances featuring recorded instructions or feedback

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type, temperature rating, and special features. The 'P' indicates a PDIP package, 'Y' denotes lead-free construction, and 'I' specifies industrial temperature range. Confirm availability of the TSOP or SOIC variants if surface-mount assembly is required. Contact authorized distributors for current stock levels and lead times.

Selection Notes

Select the ISD17210 based on the required message duration and audio quality trade-off. Higher sampling frequencies provide better audio fidelity but reduce total recording time. Ensure the supply voltage matches the application's battery or line power constraints within the 2.4 V to 5.5 V range. Choose between standalone mode for cost-sensitive designs or SPI mode for complex microcontroller integration and flexible address management.

Part Context

The ISD17210 belongs to the Winbond ISD1700 ChipCorder series, designed for high-quality, uncompressed voice storage. This series eliminates the need for external flash memory or DSPs by integrating all necessary audio processing, ADC/DAC, and storage on a single chip. It is part of a broader family offering various duration options from 20 to 480 seconds, catering to diverse voice messaging needs.

Replacement Considerations

Direct replacements within the ISD1700 series include ISD17180 (120-360 sec), ISD17240 (160-480 sec), and ISD17150 (100-300 sec). When substituting, verify that the pinout remains compatible across packages (PDIP/SOIC/TSOP) and that the new part's duration specifications meet the application requirements. Note that older revisions may have different ROSC resistor values.