A31G323RL

The A31G323 is a high-performance 32-bit microcontroller based on an ARM Cortex-M0+ core, designed as a main controller for a wide range of appliances. It pairs a 48 MHz Cortex-M0+ CPU with integrated memory and a rich set of peripherals to support motor control, sensor interfaces, user I/O and USB-enabled device applications.

With 64 Kbytes of on-chip flash, 16 Kbytes of SRAM and diverse serial and analog peripherals, the A31G323 delivers an integrated platform for embedded appliance designs that require deterministic control, multi-channel data acquisition and flexible power/clock modes.

Key Features

• Core ARM Cortex-M0+ 32-bit core running at 48 MHz for deterministic control and efficient code execution.
• Memory 64 Kbytes of flash program memory and 16 Kbytes of SRAM to support application code and runtime data.
• Power and Clock Management Operates from 1.8 V to 5.5 V and supports multiple power modes (RUN, SLEEP, DEEP SLEEP, BACKUP POWER) for flexible energy management.
• Timers and PWM Dedicated 16-bit 3-phase PWM timer plus multiple general-purpose timers (16-bit and 32-bit) suitable for motor control, PWM generation and input capture.
• Analog and Data Conversion 1 Msps 12-bit ADC with up to 16 channels and a 10-bit DAC for precise sensor acquisition and analog output functions; includes on-chip temperature sensor and comparators with internal reference.
• Connectivity and Interfaces Multiple serial interfaces including I2C, SPI, USART (UART + SPI) and Full-Speed USB to support host/device communication and peripheral expansion.
• System Peripherals DMA, CRC generator (CRC-CCITT/CRC-16), External Bus Interface (EBI), Real Time Clock (RTC), VBAT support, and SWD debug interface for development and reliability features.
• Safety and Reliability Watchdog Timer and Window Watchdog Timer for system supervision and reset control; nested vectored interrupt controller (NVIC) with 32 interrupt sources for responsive real-time handling.
• I/O and Package Up to 51 I/O ports in a 64-LQFP surface-mount package (10 × 10 mm, 0.5 mm pitch) for compact board-level integration.
• Operating Range Commercial temperature range from −40°C to +85°C to support a variety of ambient conditions.

Typical Applications

• Home Appliances — Acts as the main appliance controller, combining motor PWM, user interface handling and sensor acquisition in a single MCU.
• Motor and Power Control — 16-bit 3-phase PWM and multiple timers enable precise motor drive control and closed-loop routines.
• Sensor Hubs and Data Acquisition — 12-bit 1 Msps ADC (up to 16 channels), on-chip temperature sensor and comparators provide robust sensor interfacing and monitoring.
• USB-Enabled Devices — Full-Speed USB connectivity supports device or host communication for modern appliance peripherals and feature extension.

Unique Advantages

• Highly integrated peripheral set: Built-in ADC, DAC, comparators, CRC, DMA, RTC and USB reduce external BOM and simplify system design.
• Real-time control capability: Dedicated 3-phase PWM timer and multiple 16‑/32‑bit timers provide the timing resolution and channels needed for motor control and power sequencing.
• Flexible power and voltage range: Wide supply range (1.8–5.5 V) and several power modes give design flexibility for different power architectures and standby conditions.
• Compact, production-ready package: 64-LQFP surface-mount package with up to 51 I/O ports enables dense PCB layouts for appliance main boards.
• Development and system support: SWD debug interface plus available A31G32x user documentation and ARM Cortex-M0+ reference materials assist firmware development and system validation.

Why Choose A31G323RL?

The A31G323RL combines a Cortex-M0+ core with an integrated set of analog, timing and communication peripherals tailored for appliance main controllers and related embedded systems. Its mix of flash and SRAM, deterministic timers, 3-phase PWM and USB connectivity make it suitable for designs that require motor control, multi-channel sensing and user-interface handling in a compact package.

Supported by ABOV documentation for the A31G32x family and ARM Cortex-M0+ reference material, the A31G323RL provides a clear development path for teams building reliable, scalable appliance and control solutions.

Request a quote or contact sales to discuss pricing, availability and how the A31G323RL can fit into your next appliance or embedded control design.