ISD91260CRI

Application Specific Microcontrollers Overview

The ISD91260CRI is an Audio System-on-Chip (SoC) manufactured by Nuvoton Technology Corporation, belonging to the ChipCorder series. It integrates an ARM Cortex-M0 core operating at frequencies up to 48 MHz with 128 KB of flash memory and 12 KB of SRAM. The device features dedicated audio interfaces including I2S, Digital Microphone (DMIC) input, and Differential Audio PWM output. Additionally, it incorporates a 21-bit precision Bridge Sense ADC with on-chip calibration and programmable gain, supporting applications requiring high-precision sensor data acquisition alongside voice processing capabilities.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M0 core running up to 48 MHz with 128 KB Flash and 12 KB SRAM
• Audio I/O interfaces: I2S, DMIC input, and Differential Audio PWM output
• 21-bit precision Bridge Sense ADC with 8-step Programmable Gain Amplifier (BSPGA)
• Comprehensive peripheral set including UART, SPI/SSP, I2C, PWM, GPIO, RTC, and PDMA

Application Specific Microcontrollers Applications

• Smart scales and smart thermometers for medical detection devices
• Voice input products with sensor feedback in smart home appliances
• Industrial IoT sensor bridges with voice feedback functionality

Application Specific Microcontrollers Part Context

The ISD91260CRI is part of Nuvoton's ISD91260 family, designed specifically for audio-centric embedded applications. It serves as the underlying microcontroller for evaluation boards such as the NM-I912, which facilitates development and verification of audio recording and playback functionalities. The component is marketed under the ChipCorder brand, emphasizing its capability in handling audio data storage and processing tasks efficiently within a compact SoC architecture.