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Product Detailed Parameters
- Description：IC VOICE REC/PLAY 12MIN 28SOIC
- Series：ChipCorder®
- Mfr：Nuvoton Technology Corporation
- Package：-
- Interface：SPI
- Input Signal：Analog - Differential
- Output Signal：Analog - Single Ended
- Sampling Frequency：5.3kHz
- Duration：12 Min
- Filter Pass Band：2.3kHz
- Messaging：Multiple
- Oscillator Type：Internal/External
- Features：Auto Mute
- Operating Temperature：-40°C ~ 85°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 ISD4004-12MSI is a single-chip voice record/playback device from the ISD4004 series, designed for portable applications. It provides 12 minutes of recording duration at a sampling frequency of 5.3 kHz and a typical filter pass band of 2.3 kHz. The chip operates on a single 3V supply with an operating current of 25 mA during recording and 1 µA in standby. It utilizes direct analog storage technology to preserve natural audio quality without digital compression. The device features a serial peripheral interface (SPI) for microcontroller control and supports message cueing and automatic mute functions.
Feature Summary
- Direct analog storage technology preserves high-quality natural voice reproduction without digitization or compression artifacts.
- Integrated SPI or Microwire serial interface allows for low pin-count control by external microcontrollers.
- AutoMute feature minimizes background noise attenuation during periods of silence during playback operations.
Applications
- Portable consumer electronics requiring voice messaging
- Industrial automation systems with speech prompts
- Smart home security alarm voice notifications
Procurement Notes
Verify the specific suffix MSI indicates the SOIC package type when sourcing replacements. Confirm the industrial temperature grade (-40°C to +85°C) matches the application environment requirements. Ensure the ordering code aligns with the 12-minute duration specification to avoid functional mismatches in existing designs.
Selection Notes
Select this component when 12 minutes of analog voice storage is required within a compact footprint. Consider the 5.3 kHz sampling rate as a balance between audio fidelity and memory capacity. Verify that the host system can provide the necessary SPI communication lines and power supply decoupling for stable operation.
Part Context
The ISD4004 series represents Nuvoton's CMOS-based voice solutions utilizing multilevel Flash memory. This specific model offers a mid-range duration option compared to the 8, 10, and 16-minute variants. It is part of the ChipCorder family designed for cost-effective, high-reliability voice storage in embedded systems.
Replacement Considerations
ISD4004-12MP
FAQ
How does the ISD4004-12MSI handle audio input signals?
It accepts analog signals via ANA IN+ and ANA IN- pins, supporting both single-ended (32 mVp-p max) and differential (16 mVp-p max) input modes for optimal signal quality.
What is the function of the RAC pin?
The Row Address Clock (RAC) pin outputs a signal indicating the end of a memory row, which assists in message management and address pointer control during recording and playback.
Can the internal clock be replaced with an external one?
Yes, an external clock can be applied to the XCLK pin for higher precision, though the internal oscillator is factory-calibrated for commercial and industrial temperature ranges.
