A31G226CLN

The A31G226CLN is a 32-bit microcontroller based on an ARM Cortex-M0+ core designed as a main controller for a variety of appliances and consumer electronics. It combines a high-speed 48 MHz core with abundant on-chip memory and a broad set of peripherals to handle control, sensing and user-interface tasks in embedded designs.

With up to 256 KB of flash, 32 KB of data flash and 20 KB of SRAM, the device targets applications that require performance, integration and flexible power and clock management across a 1.8–5.5 V supply range and an operating temperature range of −40 to 85 °C.

Key Features

• Core ARM Cortex-M0+ 32-bit core operating up to 48 MHz for responsive control and signal processing.
• Memory 256 KB program FLASH, 32 KB data flash and 20 KB SRAM with memory bank swap and read-protection options for secure storage and in-field flexibility.
• Power and Clock Operates from 1.8 V to 5.5 V with internal and external oscillator support, PLL and multiple low-power modes (RUN, SLEEP, DEEP-SLEEP) for adaptable power management.
• Timers & PWM Multiple 16-bit timers and 32-bit timers with 16-bit PWM and 3-phase complementary PWM generators for motor drive and precision timing control.
• Analog & Data Converters 12-bit A/D converter and 12-bit D/A converter plus internal temperature sensor and comparators for sensor interfacing and analog control.
• Interfaces & Communication Rich serial connectivity including I2C, SPI, UART and USART ports plus external serial interfaces to communicate with on-board sensors and devices.
• DMA & System Direct Memory Access controller (8 channels) and Nested Vector Interrupt Controller (NVIC) to streamline data movement and interrupt handling.
• GPIO & Drivers 43 general-purpose I/O pins with sink-type high-current output port and dedicated LED driver capabilities for direct actuator and indicator control.
• Display & CRC Integrated LCD driver with configurable COM × SEG options and hardware CRC generator supporting multiple CRC widths for data integrity checks.
• Reliability & Qualification IEC60730 qualification supported and on-chip monitoring (low-voltage detection, clock monitoring, watchdog) for dependable appliance operation.
• Package & Temperature Surface-mount 48-LQFP package (7×7 mm, 0.5 mm pitch) rated for operation from −40 to 85 °C.
• Development Support SWD debug interface for in-system debugging and development.

Typical Applications

• Home Appliances — Acts as the main controller for appliance systems, managing motors, timers and user controls with integrated PWM and timer resources.
• Consumer Electronics — Handles user-interface and display control using the on-chip LCD driver and LED/high-current ports for front-panel indicators.
• Sensor Hubs & Monitoring — Aggregates sensor data via multiple serial interfaces and the 12-bit ADC, with DMA support to reduce CPU overhead.
• Embedded Control Systems — Implements real-time control algorithms and peripheral coordination leveraging the Cortex-M0+ core, DMA and multi-channel timers.

Unique Advantages

• Highly integrated memory mix: 256 KB flash, 32 KB data flash and 20 KB SRAM reduce external memory needs and simplify firmware management.
• Flexible power and clocking: Wide supply range (1.8–5.5 V), internal/external oscillators and multiple low-power modes enable designs across varied power envelopes.
• Comprehensive analog and motor control support: 12-bit ADC/DAC, comparators and 3-phase PWM generators provide on-chip resources for sensing and actuation.
• Efficient data handling: 8-channel DMA and NVIC support minimize CPU load for data transfer and interrupt-driven tasks.
• Appliance-grade reliability: IEC60730 qualification and on-chip monitoring features help meet safety and reliability requirements for home appliances.
• Compact, board-friendly package: 48-LQFP (7×7 mm) surface-mount package balances I/O count and PCB footprint for space-constrained applications.

Why Choose A31G226CLN?

The A31G226CLN integrates a capable Cortex-M0+ core with a broad set of peripherals, ample on-chip memory and robust analog and timing resources to deliver a compact, cost-effective controller for appliance and consumer electronic designs. Its combination of memory, DMA, serial interfaces and display/LED drivers simplifies system architecture and shortens BOM.

Designed for embedded engineers building reliable control systems, the A31G226CLN is suited to projects that require balanced performance, peripheral integration and operational reliability across varied supply voltages and temperature conditions.

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