A31G226RLN

The A31G226RLN is a 32-bit microcontroller based on a high-performance ARM Cortex-M0+ core running up to 48 MHz. It is engineered as a main controller for a wide range of appliances and complex consumer electronics, combining ample on-chip memory with an extensive peripheral set for sensor and device interfacing.

With broad supply voltage support and a rich mix of analog, timer and serial interfaces, the A31G226RLN delivers a highly integrated foundation for appliance control, user interfaces and sensor-rich embedded designs.

Key Features

• Core  ARM Cortex-M0+ 32-bit processor with up to 48 MHz operation for responsive control and real-time tasks.
• Memory & Security  256 Kbytes of code Flash and 20 Kbytes of SRAM with data flash and memory bank swap; read-protection options enhance code and data security.
• Power & Voltage Range  Flexible single-supply operation from 1.8 V to 5.5 V and multiple clock sources (internal and external) for design adaptability.
• Analog & Sensing  12-bit A/D converter with up to 18 channels and a 12-bit D/A converter, plus an internal temperature sensor and comparators for on-board sensing and control.
• Timers & PWM  Multiple timers including seven 16-bit and two 32-bit general-purpose timers, watchdog timer and three 16-bit PWM channels for motor, actuator and timing tasks.
• Connectivity & Serial Interfaces  Built-in serial interfaces including I2C, SPI, UART and USART to connect sensors, displays and external peripherals.
• DMA & CRC  8-channel DMA controller for efficient data movement and programmable CRC generator (7/8/16/32-bit) for data integrity and diagnostics.
• Display & LED Support  Integrated LCD driver (COM × SEG configurations) and high-current LED driver ports for display and lighting applications.
• Package & I/O Density  64-LQFP package with 59 I/O pins, suitable for compact appliance and consumer designs requiring multiple external connections.
• System Reliability & Qualification  Watchdog timer, low-voltage detection and IEC60730 qualification support appliance-grade safety and reliable operation across deployments.
• Development & Debug  SWD debug interface for development and debugging workflows.

Typical Applications

• Home Appliances  Central control for washing machines, ovens and HVAC controllers where integrated I/O, timers and safety features are required.
• Consumer Electronics  Controllers for consumer devices that need on-chip ADC, D/A and display drivers for sensors and user interfaces.
• Human–Machine Interfaces (HMIs)  Drive LCD panels and LED indicators while managing input from buttons and sensors for appliance control panels.
• Sensor Hubs & Instrumentation  Aggregate analog and digital sensor data using the multi-channel ADC, DMA and serial buses for efficient processing.
• Motor and Actuator Control  Use PWM channels and general-purpose timers for motor drive and actuator timing in appliance mechanisms.

Unique Advantages

• Highly integrated peripheral set: Reduces BOM and PCB complexity by combining ADC, DAC, LCD, LED drivers, timers, DMA and CRC on-chip.
• Substantial on-chip memory: 256 Kbytes Flash and 20 Kbytes SRAM with data flash and memory bank swap for flexible code storage and secure updates.
• Wide supply range: 1.8 V–5.5 V operation simplifies power supply design across varied system architectures.
• Designed for appliance reliability: Built-in watchdog, low-voltage detection and IEC60730 qualification support safety-focused designs.
• Efficient data handling: 8-channel DMA offloads CPU for high-throughput peripheral transfers and deterministic control loops.
• Display and UI ready: On-chip LCD driver and high-current LED ports enable direct connection to common UI elements.

Why Choose A31G226RLN?

The A31G226RLN pairs a responsive ARM Cortex-M0+ core with a broad, appliance-focused peripheral set and ample on-chip memory to simplify system design and accelerate time-to-market. Its combination of ADC/DAC, display drivers, timers, DMA and serial interfaces makes it well suited to appliance and consumer-electronics control tasks that demand integration and reliability.

For designers targeting scalable, robust embedded systems, the A31G226RLN delivers the on-chip features and safety-oriented qualifications needed to reduce BOM complexity while maintaining deterministic control and diagnostic capabilities.

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