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Product Detailed Parameters
- Description：IC VOICE REC/PLAY 16MIN 28SOIC
- Series：ChipCorder®
- Mfr：Nuvoton Technology Corporation
- Package：Bulk
- Interface：SPI
- Input Signal：Analog - Differential
- Output Signal：Analog - Single Ended
- Sampling Frequency：4kHz
- Duration：16 Min
- Filter Pass Band：1.7kHz
- Messaging：Multiple
- Oscillator Type：Internal/External
- Features：Auto Mute
- Operating Temperature：0°C ~ 70°C (TA)
- Voltage - Supply：2.7 V ~ 3.3 V
- Mounting Type：Surface Mount
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Grade：-
- Qualification：-
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Overview
The ISD4004-16MSY is a single-chip voice record/playback device from the ISD ChipCorder series by Nuvoton Technology Corporation. It provides 16 minutes of recording duration at a sampling frequency of 4.0 kHz, with a typical filter pass band of 1.7 kHz. The device operates on a single 3-volt supply (2.7V to 3.3V) and features low-power consumption, including a standby current of 1 µA. It utilizes high-density multilevel Flash memory for non-volatile storage, supporting 100K record cycles and 100-year message retention. Control is managed via SPI or Microwire interfaces.
Feature Summary
- Direct analog storage technology preserves natural voice quality without digitization or compression artifacts.
- Integrated AutoMute feature attenuates background noise during silence periods to improve audio clarity.
- Fully addressable memory architecture allows precise control over multiple messages using microcontroller interfaces.
- On-chip oscillator and filters eliminate the need for external components, simplifying system design.
Applications
- Portable consumer electronics requiring voice prompts
- Automotive messaging systems
- Industrial equipment status announcements
- Educational toys and learning aids
Procurement Notes
Verify the specific suffix MSY against the manufacturer's official ordering guide to confirm package type and temperature grade. Ensure compatibility with the target system's voltage levels and interface protocols before finalizing procurement orders.
Selection Notes
Select this model when 16 minutes of continuous recording is required. Consider lower duration variants if higher sampling rates and better audio fidelity are prioritized over length. Verify industrial temperature range requirements against the commercial specifications provided in the datasheet.
Part Context
The ISD4004 series represents Nuvoton's legacy analog storage solution, distinct from digital PWM-based voice chips. It serves as a cost-effective alternative for applications where high-fidelity analog reproduction is critical and complex DSP processing is unnecessary.
Replacement Considerations
Public confirmed substitute part numbers: None identified in verified documentation.
FAQ
How does the ISD4004-16MSY handle audio input?
It accepts analog signals via the ANA IN+ and ANA IN- pins, supporting both single-ended and differential input modes for optimal signal quality.
What is the purpose of the RAC pin?
The Row Address Clock (RAC) pin outputs a signal indicating the end of a memory row, which can be used for message management and addressing purposes.
Can the device operate without an external clock?
Yes, it includes an internal oscillator, but an external clock can be applied to the XCLK pin for greater frequency precision across temperature ranges.
