ISD17180PYI

Overview

The ISD17180PYI is a multi-message single-chip voice record and playback device from the ISD1700 series. It features non-volatile message storage using patented Multi-Level Storage (MLS) technology, allowing for high-quality audio recording without external memory. The device supports user-selectable sampling frequencies ranging from 4 kHz to 12 kHz via an external resistor, which also determines the message duration. It operates on a wide voltage supply range of 2.4 V to 5.5 V, making it suitable for both battery-powered and line-powered applications. The IC integrates a microphone preamplifier with Automatic Gain Control (AGC), an analog input, and a Class D PWM speaker driver capable of directly driving speakers or buzzers.

Feature Summary

• Integrated Multi-Level Storage (MLS) array for non-volatile message retention without external components
• Dual operating modes including address trigger and direct trigger for flexible message management
• On-chip oscillator and microphone preamplifier with Automatic Gain Control (AGC)
• Selectable differential microphone input or single-ended analog input under feed-through mode
• Built-in Pulse Width Modulation (PWM) Class D speaker driver for direct load connection

Applications

• Standalone electronic messaging systems requiring push-button operation
• Voice-enabled consumer electronics and toys
• Industrial control panels with voice feedback
• Automotive warning systems and notification devices

Procurement Notes

Verify the specific suffix 'PYI' against official Nuvoton documentation to confirm package type and temperature grade. Ensure the selected external resistor matches the desired sampling frequency and duration requirements. Confirm compatibility with the target power supply voltage range of 2.4 V to 5.5 V during system design.

Selection Notes

Select this component when standalone voice recording and playback are required without microcontroller intervention. Choose based on the necessary message duration and audio quality trade-off determined by the sampling frequency setting. Consider the dual trigger modes for interface simplicity in button-based applications.

Part Context

The ISD17180PYI belongs to the NuMicro ISD1700 ChipCorder series, designed for high-quality voice applications. This series emphasizes ease of use through proprietary message management systems that handle address locations automatically. It serves as a cost-effective solution for integrating voice capabilities into various electronic products.

Replacement Considerations

Check for other members of the ISD1700 series with compatible pinouts and similar MLS architecture. Verify if alternative packages such as SOIC or PDIP are available if the current package is unavailable, ensuring electrical characteristics remain consistent.