ISD91260BRI

Application Specific Microcontrollers Overview

The ISD91260BRI is an Audio System-on-Chip (SoC) from Nuvoton Technology Corporation, part of the ChipCorder series. It integrates an ARM Cortex-M0 core operating at up to 48 MHz with 128 KB of flash memory and 12 KB of SRAM. The device features specialized audio interfaces including I2S, DMIC input, and Differential Audio PWM output. A key component is the 21-bit precision Bridge Sense ADC, which supports on-chip calibration and an 8-step Programmable Gain Amplifier (BSPGA). Standard peripherals include UART, SPI/SSP, I2C, PWM, GPIO, a 12-bit SAR ADC, RTC, PDMA, and various voltage detectors.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M0 core running up to 48 MHz with 128 KB Flash and 12 KB SRAM
• 21-bit precision Bridge Sense ADC with 8-step BSPGA and on-chip calibration
• Integrated audio I/O: I2S, DMIC input, and Differential Audio PWM output
• Comprehensive peripheral set including UART, SPI, I2C, PWM, and RTC

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 requiring voice feedback capabilities

Application Specific Microcontrollers Part Context

The ISD91260BRI belongs to the ISD91260 family within Nuvoton's ChipCorder product line. It serves as the microcontroller unit for evaluation boards such as the NM-I912, which is designated for recording and playback audio evaluation. The component is designed to support applications requiring both audio processing and precise analog sensor interfacing.

Application Specific Microcontrollers Replacement Considerations

The ISD91260CDI is a related variant within the same family. Selection between variants should be based on specific pinout compatibility and peripheral requirements defined in the official datasheet.