ISD94124CDI

Application Specific Microcontrollers Overview

The ISD94124CDI is an ARM-based Audio SoC from Nuvoton, featuring an embedded Cortex-M4 core with DSP extensions and a Floating Point Unit operating at up to 200 MHz. It integrates 512 KB of Flash memory and 192 KB of SRAM. The device supports voice recognition for up to 32 languages with adaptation tools and includes offline local VR capabilities for up to 100 commands. Key audio interfaces include I2S, 12-bit SAR ADC, DMIC input, and differential Audio PWM output. Connectivity options comprise USB 1.1 Device, UART, SPI, I²C, PWM, GPIO, and multiple timers.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4F core running at 200 MHz with DSP and FPU
• Integrated Voice Recognition supporting 32 languages and 100 commands
• Audio I/O interfaces: I2S, 12-bit ADC, DMIC, and Differential Audio PWM
• Peripheral set including USB 1.1, PDMA, RTC, and 57 I/O pins

Application Specific Microcontrollers Applications

• Voice Input Products (remote controls, light switches)
• Smart Home Voice HMI
• USB/I2S Audio Bridge
• Gaming Controllers
• Industrial Automation

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'CDI' against the manufacturer's official datasheet to confirm package type and temperature range. Ensure compatibility with required voltage levels (1.8V to 3.3V) and analog supply requirements (1.08V to 1.32V). Confirm availability through authorized distributors as stock status varies by region.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring embedded offline voice recognition and high-performance audio processing. The 512 KB Flash and 192 KB RAM support complex audio algorithms. Ensure the design accommodates the LQFP-64 package and provides necessary clock sources for the 200 MHz operation. Verify that the target environment operates within the -40°C to +85°C temperature range.

Application Specific Microcontrollers Part Context

This part belongs to the NuMicro ISD series of Audio MCUs designed for voice-centric applications. It combines general-purpose MCU capabilities with specialized audio hardware accelerators. The series targets cost-sensitive consumer electronics requiring robust voice control features without external processors.

Application Specific Microcontrollers Replacement Considerations

Check for updated revisions within the ISD94124 family. Cross-reference pinouts and register maps if considering alternative Nuvoton Audio MCUs. No direct public substitute part numbers are confirmed in the provided data.