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Product Detailed Parameters
- Description：IC VOICE REC/PLAY 180SEC 28SOIC
- Series：ChipCorder®
- Mfr：Nuvoton Technology Corporation
- Package：Tape & Reel (TR)
- Interface：Pushbutton, SPI
- Input Signal：Analog - Single Ended, Microphone
- Output Signal：Analog - Single Ended, PWM Speaker Output
- Sampling Frequency：4 ~ 12kHz
- Duration：60 ~ 180 Sec
- Filter Pass Band：-
- Messaging：Multiple
- Oscillator Type：Internal
- Features：Automatic Gain Control, Volume Control
- Operating Temperature：0°C ~ 70°C (TA)
- Voltage - Supply：2.4 V ~ 5.5 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 ISD1790SYR is a voice record and playback integrated circuit from Nuvoton Technology Corporation, belonging to the ChipCorder series. It provides up to 180 seconds of recording time in a 28-pin SOIC package. The device supports direct microphone input and features built-in amplification for speaker output. It utilizes SPI interface for control and data transfer, allowing for easy integration into various electronic systems without complex external components.
Feature Summary
- Integrated voice recording and playback functionality with direct microphone interface
- Built-in amplifier for driving speakers directly
- SPI serial interface for system control and data access
- Compact 28-pin SOIC packaging for space-constrained designs
Applications
- Voice recorders
- Toys
- Consumer applications
- Industrial applications
- Portable products
Procurement Notes
Verify the specific suffix SYI or SYR against official Nuvoton documentation to confirm pinout and package variations. Ensure compatibility with existing SPI controller logic levels. Confirm availability through authorized distributors to guarantee component authenticity and traceability for production runs.
Selection Notes
Select this component when fixed-duration voice messaging is required without external memory controllers. Consider the 180-second limit for application scope. Evaluate power consumption requirements against system battery constraints. Verify that the SPI interface speed matches the host microcontroller capabilities for reliable operation.
Part Context
This part belongs to Nuvoton's ISD1790 series of ChipCorder devices. These ICs are designed for simple voice storage applications using proprietary flash technology. The series offers varying recording times across different models, providing options for different message length requirements within consumer and industrial electronics.
Replacement Considerations
Check Nuvoton datasheets for cross-reference models within the ISD1790 family offering different recording durations. Verify pin compatibility before substituting with other voice recorder ICs from different manufacturers.
