ISD1760PY

Overview

The ISD1760PY is a fully integrated single-chip voice record and playback device from the Nuvoton ISD1700 ChipCorder series. It utilizes patented Multi-Level Storage (MLS) technology to store audio data directly in on-chip Flash memory without digital compression, ensuring high-quality reproduction. The device supports user-selectable message durations ranging from 40 to 120 seconds and sampling frequencies adjustable from 4 kHz to 12 kHz via an external resistor. Operating voltage spans 2.4 V to 5.5 V, and it features dual input channels (differential microphone with AGC and single-ended analog input) alongside dual output options (PWM Class D speaker driver and configurable analog output).

Feature Summary

• Integrated message management system enabling standalone push-button operation or microcontroller SPI control.
• Patented Multi-Level Storage (MLS) technology for non-volatile flash-based recording without compression.
• Dual operating modes: Standalone mode with automatic power-down and SPI mode for full address access.
• Built-in Automatic Gain Control (AGC) for microphone preamplification and 8-level volume control.

Applications

• Standalone voice messaging systems using push-button interfaces.
• Microcontroller-integrated voice prompts requiring SPI command control.
• Battery-powered electronic devices utilizing low-voltage operation.
• Audio confirmation systems using customizable sound effects and vAlert indicators.

Procurement Notes

Verify the specific suffix 'PY' against the manufacturer's official ordering information table to confirm package type and temperature grade. Ensure the selected variant matches the required commercial or industrial operating temperature range. Confirm that the packaging format aligns with assembly requirements before finalizing procurement orders.

Selection Notes

Select the ISD1760PY when a maximum recording duration of 120 seconds at 4 kHz or 40 seconds at 12 kHz is required. Choose this model over other ISD1700 variants if the specific capacity matches these time-frequency constraints. Consider the PDIP package availability for through-hole mounting applications as indicated by the part designation.

Part Context

The ISD1760 belongs to the ISD1700 ChipCorder series, which provides high-quality, single-chip voice solutions. This series is designed for applications requiring flexible message management and direct storage in solid-state memory. The ISD1760 specifically offers intermediate recording duration capabilities within the family, bridging shorter and longer message chips.

Replacement Considerations

Direct replacements within the ISD1700 series include ISD1730 (shorter duration) and ISD17120/ISD17240 (longer duration). Verify pin compatibility and software command set similarities when substituting with other ISD1700 family members. Ensure the replacement part supports the same SPI interface or standalone control logic required by the design.