A31G226ML2N

The A31G226ML2N is a 32-bit microcontroller integrating an ARM Cortex-M0+ core running up to 48 MHz with large on-chip memories and a rich peripheral set. Designed as a main controller for appliances and consumer electronics, it combines processing performance with extensive analog, timing and serial interfaces for sensor, actuator and user-interface handling.

Key Features

• Core ARM Cortex-M0+ 32-bit core operating up to 48 MHz for responsive control and deterministic embedded execution.
• Memory 256 KB code flash, 32 KB data flash and 20 KB SRAM with memory bank swap and read-protection options to support in-field firmware and secure storage.
• Power and Clocks Wide operating voltage range from 1.8 V to 5.5 V and multiple clock sources (internal HSI 32 MHz plus external options) with power modes for run, sleep and deep-sleep.
• Timers and PWM Multiple 16-bit general-purpose timers, 32-bit timers and 16-bit PWM with 3-phase complementary PWM generators for motor and power-stage control.
• Analog 12-bit ADC with up to 18 input channels and a 12-bit DAC channel plus two comparators and an internal temperature sensor for comprehensive analog monitoring.
• Communication Interfaces Multiple serial interfaces including 3 I2C channels, 2 SPI channels, 2 UARTs and 4 USARTs to connect sensors, displays and subsystems.
• DMA and CRC 8-channel DMA for efficient data movement and programmable CRC generator (CRC-7/8/16/32) to support data integrity checks.
• Display and I/O Integrated LCD driver (configurable up to 8 × 37 or 3 × 42 COM × SEG in the 80-pin package), sink-type high-current output port for LED drive, and up to 75 general-purpose I/O pins.
• System Reliability and Safety Watchdog and watch timer, low-voltage detection with interrupt/reset and IEC60730 qualification for appliance safety-oriented designs.
• Package and Temperature 80-LQFP package (12 × 12 mm, 0.5 mm pitch), surface-mount, and industrial operating range from −40 °C to +105 °C.
• Development Support Serial Wire Debug (SWD) interface for debugging and programming during development.

Typical Applications

• Home Appliances Central control for appliances with multi-sensor inputs, motor/PWM control and LCD-based user interfaces.
• Consumer Electronics Controller for devices requiring integrated display drive, audio/analog output via the 12-bit DAC, and multi-protocol connectivity.
• Sensor and Actuator Hubs Aggregates sensor data across I2C/SPI/UART interfaces and processes inputs using the 12-bit ADC and DMA for efficient data handling.
• Motor and Power Control Subsystems 3-phase complementary PWM and multiple timers enable control of motor drives and power stages within appliance and device contexts.

Unique Advantages

• Highly integrated memory footprint: 256 KB flash plus 32 KB data flash and 20 KB SRAM reduce need for external memory, simplifying BOM and board layout.
• Broad analog and timing resources: 18-channel 12-bit ADC, 12-bit DAC and advanced PWM/timer combination support mixed-signal control tasks without external ASICs.
• Flexible connectivity: Multiple I2C, SPI, UART and USART channels provide direct interfacing to a wide range of sensors, peripherals and displays.
• Appliance-grade reliability: Built-in watchdogs, low-voltage detection and IEC60730 qualification address safety and reliability requirements for appliance applications.
• Wide voltage and temperature operating range: 1.8–5.5 V supply operation and −40 °C to +105 °C rating accommodate battery- and mains-powered designs and varied environments.
• Family scalability: Part of the A31G22x series with alternate flash/SOC/package options for design migration and product variant planning.

Why Choose A31G226ML2N?

The A31G226ML2N positions itself as a performance-focused, highly integrated microcontroller for appliance and consumer-electronics control. Its combination of a Cortex-M0+ core, sizable on-chip flash and dedicated analog, timing and display peripherals delivers a compact platform for complex control, sensing and user-interface tasks.

This device is ideal for designers seeking a single-chip solution that reduces external components while meeting safety-oriented appliance requirements and offering package and memory configurations across the A31G22x family for product line scalability.

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