ISD94124CDI

I94124CDI is Nuvoton Audio SoC based on embedded ARM® Cortex®-M4 core with DSP extensions and a Floating Point Unit which run up to 200 MHz. It provides up to 512 KB of flash memory and up to 192 KB of SRAM.

I94124CDI is also equipped with a variety of peripheral devices, such as Multi-Function Timers, Watchdog Timers, RTC, PDMA, UART, SPI, I²C, PWM, GPIO, 12-bit ADC, USB1.1 Device, Low voltage reset and Brown-out Detector.

The core features for I94124CDI Audio SoC includes audio I/O interfaces such as I2S, 12-bit SAR ADC Converter, DMIC input and Differential Audio PWM output.

Specifically, I94124CDI provides Audio SoC System Hardware, with Voice Recognition Capability.

Voice Recognition:

• Supports 32 Langues with Adaptation Tool
• Embedded off-line local VR
• Upto 100 commands
Target Applications:

• Audio Processing Platforms
• Voice Input Product - remote control, light switch, and smart applicances
• Industrial Automation
• Smart Home - Voice HMI
• USB/I2S Audio Bridge
• Gaming Controller
Key Features:

• Core
- Arm® Cortex®-M4 processor running up to 200MHz

• Memories
- 512 KB Flash
- 192 KB embedded SRAM
- 4 KB Flash for user program loader ( LDROM )
- ISP / ICP / IAP programming

• Clocks
- Built-in 48.0 MHz / 49.152 MHz selectable internal high speed RC oscillator (HIRC) for system operation
- External 32kHz crystal input for RTC function and low power system operation
- Supports PLL upto 500MHz for high performance system operation

• Timers
- 4 channels 32-bit timer

• PWMs
- 6 channels 16-bit PWM

• Communication Interfaces
- 1-set of UART interface
- 1-set of SPI interface + 2-set of shared SPI interface
- 1-set of I²C interface

• Audio Interfaces
- Differential Audio PWM Output (DPWM), Supports Sample Rate from 16~96KHz
- Digital MIC Input
- 1-set of I²S interface + 2-set of shared I2S interface.

• GPIOs
- Four I/O modes: Quasi bi-direction / Push-Pull output / Open-Drain output / Input with high impendence
- Maximal 60 GPIOs

• Peripherals
- 12-bit SAR ADC
- Multi-Function Timers, WDT, RTC
- PDMA
- USB1.1 Device Controller

• Operating Characteristics
- Wide voltage range: 1.8V ~ 3.3V
- Temperature range: -40°C ~ 85°C

• Package
- LQFP-64 (7x7mm)