A31G226MM2N

The A31G226MM2N is a 32-bit microcontroller based on an ARM Cortex-M0+ core, engineered for main control in a range of appliances and consumer electronics designs. It combines up to 48 MHz CPU performance with extensive on-chip peripherals for sensor interfacing, display and motor control, and system management.

With large code and data flash, a generous SRAM footprint and a broad set of timers, ADC/DAC and communication interfaces, the A31G226MM2N targets integrated, reliable implementations where performance, flexibility and system-level integration matter.

Key Features

• Core ARM Cortex-M0+ 32-bit CPU running up to 48 MHz for responsive main control and deterministic interrupt handling.
• Memory 256 KB code Flash with memory bank swap and read-protection features, plus 32 KB data Flash and 20 KB SRAM for application and data storage.
• Power and Clocks Wide operating voltage range of 1.8 V to 5.5 V, multiple clock sources (internal and external), PLL and power modes including RUN, SLEEP and DEEP-SLEEP; low-voltage detection and reset for robust power management.
• Timers & PWM Seven 16-bit timers and two 32-bit timers, plus three 16-bit PWM channels with 3-phase complementary PWM support for motor and actuator control; integrated watchdog and watch timer for system safety.
• Analog and Sensors 12-bit ADC up to 1.0 Msps with up to 18 input channels, one 12-bit DAC channel and an internal temperature sensor for precision sensor interfacing and control loops.
• Connectivity Multiple serial peripherals including 3 I2C channels, 2 SPI channels, 2 UARTs and 4 USARTs to interface sensors, drivers and external controllers.
• DMA, CRC and System Peripherals 8-channel DMA supporting efficient data movement, CRC generator (7/8/16/32-bit) for data integrity, and NVIC with 37 interrupt sources for complex event handling.
• Display and I/O Integrated LCD driver (80-pin configuration: 8×37 or 3×42) and sink-type high-current I/O ports with up to 75 available I/O pins for user interfaces and direct drive of indicators.
• Debug and Development SWD debug interface for development and debugging workflows.
• Package and Environment Available in an 80-LQFP package option with industrial-grade operating temperature from −40 °C to +105 °C and IEC60730 qualification for appliance safety-related applications.

Typical Applications

• Home Appliances — Main control for washing machines, HVAC, and kitchen appliances where integrated timers, motor control PWM and IEC60730 qualification support safety and control functions.
• Consumer Electronics — User-interface and display control using the integrated LCD driver alongside multiple UART/USART and I2C interfaces for accessory connectivity.
• Sensor Hubs and Industrial Controls — Multi-channel 12-bit ADC and internal temperature sensing enable centralized sensor acquisition and regulation tasks.
• Motor and Actuator Control — 3-phase complementary PWM and multiple timers provide the control building blocks for brushless motor drives and multi-channel actuator systems.

Unique Advantages

• Highly integrated peripheral set: ADC, DAC, LCD driver, PWM, multiple serial interfaces, DMA and CRC reduce external component count and simplify BOM.
• Flexible memory configuration: 256 KB code Flash with memory bank swap plus 32 KB data Flash enables firmware partitioning, secure read-protection and application upgrades.
• Robust power and temperature range: 1.8–5.5 V operation and −40 °C to +105 °C support a wide set of deployment environments and supply conditions.
• Deterministic interrupt and DMA support: NVIC with 37 interrupt sources together with an 8-channel DMA offloads CPU and improves real-time responsiveness.
• Appliance-focused qualification: IEC60730 qualification and watchdog/watch timer features help meet functional safety requirements for appliance control.
• Display and I/O versatility: LCD driver options and 75 I/O pins enable rich user interfaces and direct control of LEDs and indicators.

Why Choose A31G226MM2N?

The A31G226MM2N delivers a balanced combination of Cortex-M0+ performance, substantial on-chip memory and a broad set of peripherals tailored for appliance and consumer electronics main control. Its integrated ADC/DAC, PWM, LCD driver, extensive serial interfaces and system-management features provide a platform that consolidates functions, reduces external components and streamlines system design.

This device is well suited to designers requiring a scalable, robust microcontroller with industrial temperature range and appliance qualification, enabling dependable operation across a variety of end products that need integrated display support, multi-sensor acquisition and precise motor or actuator control.

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