A31G226RL2N

The A31G226RL2N is a 32-bit microcontroller based on a high-performance ARM Cortex-M0+ core running up to 48 MHz, designed as a main controller for a wide range of appliances. It combines substantial on-chip memories with a comprehensive set of peripherals to address control, sensing and user-interface requirements in embedded designs.

With 256 KB of code flash, 32 KB of data flash and 20 KB of SRAM, plus extensive analog and timing resources, the A31G226RL2N targets appliance, HMI and sensor-rich applications that require responsive control, integration and system-level reliability.

Key Features

• Core  ARM Cortex-M0+ 32-bit core up to 48 MHz for responsive control and deterministic real-time operation.
• Memory and Security  256 KB code flash, 32 KB data flash and 20 KB SRAM with memory bank swap and read protection options to support secure firmware and flexible memory management.
• Power and Clocks  Operates from 1.8 V to 5.5 V with multiple clock sources (internal and external), power modes (RUN, SLEEP, DEEP-SLEEP) and low-voltage detection for robust power management.
• Timers and PWM  Rich timing resources including seven 16-bit timers, two 32-bit timers, watchdog and watch timers, plus three 16-bit PWM generators with 3-phase complementary PWM capability for motor and power-control tasks.
• Analog and Data Conversion  12-bit ADC (up to 1.0 Msps) with 18 channels and a 12-bit DAC provide high-resolution sensor acquisition and analog output capability.
• Communication Interfaces  Multiple serial interfaces including 3 I²C channels, 2 UARTs, 3 USARTs and 2 SPI channels to connect sensors, actuators and external devices.
• DMA and System Services  8-channel DMA for efficient data movement, NVIC with 37 interrupt sources and CRC generator (7/8/16/32-bit) to support reliable, high-performance system designs.
• Display and GPIO  Integrated LCD driver supporting 8×29 or 3×34 COM×SEG layouts for compact HMIs and 59 I/O ports with sink-type high-current outputs for direct drive of indicators and loads.
• Reliability and Monitoring  Internal temperature sensor, clock monitoring (MCLK, HSE, LSE), low-voltage interrupt/reset and IEC60730 qualification supporting appliance safety requirements.
• Package and Temperature  Available in a 64-LQFP (10×10 mm, 0.50 mm pitch) package and rated for industrial operation from −40 °C to +105 °C.

Typical Applications

• Home Appliances  Central control for household appliances where integrated memory, timers and appliance-safety qualification (IEC60730) are required for reliable operation.
• Motor Control  3-phase complementary PWM and multiple timers enable motor-drive and fan-control implementations with precise timing and phase outputs.
• Human–Machine Interfaces (HMI)  On-chip LCD driver, ample I/Os and communication channels support display panels, button inputs and status indicators for user interfaces.
• Sensor Hub & Data Acquisition  High-resolution 12-bit ADC (18 channels), internal temperature sensing and multiple serial buses make it suitable for aggregating and preprocessing sensor data.

Unique Advantages

• Highly integrated peripheral set: Combines ADC, DAC, DMA, PWM, timers, CRC and LCD driver to reduce BOM and simplify system design.
• Flexible memory and security: 256 KB code flash, 32 KB data flash, memory bank swap and read-protection features enable secure boot and field firmware management.
• Robust operating envelope: 1.8–5.5 V supply range and −40 °C to +105 °C temperature rating suit a wide range of appliance environments.
• Appliance-ready qualification: IEC60730 qualification aligns the device with common appliance safety requirements.
• Extensive serial connectivity: Multiple I²C, UART/USART and SPI channels allow flexible interfacing to sensors, communications modules and peripherals.
• Efficient data handling and debug: 8-channel DMA plus SWD debug support accelerate development and improve runtime efficiency.

Why Choose A31G226RL2N?

The A31G226RL2N positions itself as a capable, appliance-focused microcontroller that balances processing performance, on-chip integration and system reliability. Its Cortex-M0+ core with up to 48 MHz operation, substantial flash and data flash, comprehensive analog and timing resources, and IEC60730 qualification make it well suited for control-centric and HMI-driven products.

Choose the A31G226RL2N for designs that require a scalable member of the A31G22x series, broad peripheral integration to reduce external components, and an operating range that meets demanding appliance environments.

Request a quote or submit a technical inquiry to evaluate the A31G226RL2N for your next design.