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Product Detailed Parameters
- Description：IC VOICE REC/PLAY 4MIN 28SOIC
- Series：ChipCorder®
- Mfr：Nuvoton Technology Corporation
- Package：-
- Interface：SPI
- Input Signal：Analog - Differential
- Output Signal：Analog - Single Ended
- Sampling Frequency：8kHz
- Duration：4 Min
- Filter Pass Band：3.4kHz
- 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 ISD4003-04MSI is a single-chip voice record and playback device from the ISD4003 series, manufactured by Nuvoton Technology Corporation. It features 4 minutes of recording duration at an 8 kHz sampling frequency with a typical filter pass band of 3.4 kHz. The component operates on a single 2.7 V to 3.3 V supply and utilizes an SPI interface for control. It is housed in a 28-SOIC package and supports commercial operating temperatures from 0°C to +70°C.
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.
- Non-volatile Flash memory ensures message retention for up to 100 years with zero power consumption when inactive.
Applications
- Portable cellular phone messaging systems
- Microcontroller-based voice prompting units
- Low-power industrial voice interfaces
Procurement Notes
Verify the specific suffix 'SI' against official datasheets to confirm temperature range and package variations. Confirm end-of-life status and availability through authorized distributors. Ensure compatibility with existing SPI bus configurations before procurement.
Selection Notes
Select this model for applications requiring exactly 4 minutes of high-quality voice storage. Compare sampling rates and durations across the ISD4003 series if longer recording times are needed. Verify that the 28-SOIC package fits the target PCB layout constraints.
Part Context
The ISD4003 series includes variants with 5, 6, and 8-minute durations. These share similar architecture but differ in sampling frequencies and filter pass bands. The ISD4003-04MSI represents the highest fidelity option within the series due to its 8 kHz sampling rate.
Replacement Considerations
Check for direct manufacturer-recommended substitutes such as other ISD4003 variants with different durations. Verify pin compatibility and software register mappings before substituting with older or newer generations.
