A31G323CL

The A31G323CL is a 32-bit ARM Cortex-M0+ microcontroller targeted at main controllers for a variety of appliances. It combines a high-performance Cortex-M0+ core with integrated memory and a comprehensive peripheral set to address control, sensing and human-interface tasks.

With up to 48 MHz operation, 64 Kbytes of Flash and 16 Kbytes of SRAM, the device offers a balanced platform for embedded designs requiring mixed-signal peripherals, real-time timers and USB connectivity in a 48-LQFP package.

Key Features

• Core – ARM Cortex-M0+ 32-bit core delivering deterministic, interrupt-driven control suitable for appliance main controllers; NVIC supports 32 interrupt sources.
• Memory – 64 Kbytes of on-chip Flash and 16 Kbytes of SRAM for application code and data storage; Flash is embedded program memory.
• Clock and Performance – System operation up to 48 MHz with internal and external oscillator support and multiple clock domains (HCLK, PCLK).
• Timers and Motor Control – Multiple timers including four 16-bit general-purpose timers, two 32-bit timers, a 16-bit 3-phase PWM timer and a 16-bit 3-channel input capture timer for motor and motion control.
• Analog – 12-bit ADC (up to 1 Msps) with 10–16 input channels depending on package and 10-bit DAC for signal generation and sensor interfacing; includes two comparators and an internal temperature sensor.
• Communication Interfaces – Rich connectivity with multiple USART/SPI ports, I2C controllers, External Bus Interface (EBI) and Full-Speed USB for device communication and peripheral expansion.
• Data Handling and Reliability – DMA (4 channels) to offload data transfers, CRC generator (CRC-CCITT/CRC-16) for data integrity, Watchdog and Window WDT for system reliability.
• System and Power – Real Time Clock, VBAT support, multiple power modes (RUN, SLEEP, DEEP SLEEP, BACKUP POWER) and comprehensive reset sources to support low-power and robust system designs.
• Development Support – SWD debug interface for development and debugging.
• Operating Range and Package – 1.8 to 5.5 V operating range, commercial temperature rating from −40 °C to +85 °C, available in a 48-LQFP package with 37 GPIOs.

Typical Applications

• Home Appliances – Acts as a main controller for appliances, managing sensors, user interfaces, timing and motor control functions.
• Motor and Motion Control – 3-phase PWM timer, multiple timers and ADC inputs enable efficient motor drive control and feedback processing.
• Sensor Hubs and Data Acquisition – Multi-channel 12-bit ADC, I2C/SPI/USART interfaces and DMA support high-throughput sensor sampling and preprocessing.
• USB-Enabled Devices – Full-Speed USB connectivity provides standard device communication for firmware updates, configuration or data exchange.
• User Interface and Control – Integrated timers, DAC, comparators and serial ports support responsive UI control and peripheral management.

Unique Advantages

• Highly integrated peripheral set: On-chip ADC, DAC, comparators, USB, multiple serial ports and timers reduce external components and simplify BOM.
• Flexible power and clocking: Wide VCC range (1.8–5.5 V) and internal/external oscillator options allow adaptable power architectures and clock configurations.
• Real-time capability: Dedicated timers for PWM, capture and general-purpose timing combined with NVIC and DMA enable deterministic control and reduced CPU load.
• Robust system features: Watchdog and Window WDT, multiple reset sources and CRC support improve system reliability and data integrity.
• Developer-friendly: SWD debug interface and a comprehensive datasheet and user manual for the A31G32x family accelerate development and validation.

Why Choose A31G323CL?

The A31G323CL balances a Cortex-M0+ control core with a wide set of integrated analog, timer and communication peripherals to address appliance and embedded control applications. Its combination of 64 Kbytes Flash, 16 Kbytes SRAM, Full-Speed USB, multi-channel ADC and motor-oriented timers makes it suitable for designs that require mixed-signal control, sensor interfacing and real-time performance.

As part of the A31G32x family from ABOV, the A31G323CL provides a documented, supported platform for mid-range embedded applications where integration, reliability and clear upgrade paths across family members support long-term product development.

Request a quote or submit a product inquiry to receive pricing, availability and technical support information.