A31G213CL

The A31G213CL is a 32-bit microcontroller based on the ARM Cortex-M0+ core, engineered as a main controller for a variety of appliances and consumer electronic devices. It combines a 48 MHz Cortex-M0+ core with 64 Kbytes of on-chip Flash, 6 Kbytes of SRAM and a broad set of on-chip peripherals to support sensor interfacing, motor and LED control, and rich user interfaces.

Key Features

• Core  ARM Cortex-M0+ core running up to 48 MHz, offering a modern 32-bit execution environment suitable for embedded control tasks.
• Memory  64 Kbytes of Flash program memory and 6 Kbytes of SRAM for application code and runtime data storage.
• Power and Clock  Flexible supply range from 1.8 V to 5.5 V with internal and external oscillator support and multiple power modes (Run, Sleep, Power Down).
• Timers & PWM  Rich timer set including four 16-bit general-purpose timers, two 32-bit timers, 16-bit 6-channel PWM timers and a 16-bit 3-phase PWM block for motor drive and precise timing control.
• Analog  12-bit ADC with 14 input channels plus a 5-bit D/A converter for mixed-signal interfacing and sensor measurements.
• Communication Interfaces  Multiple serial interfaces: 2 USART (UART + SPI capability), 2 UARTs, 2 SPIs and 2 I2C channels for sensor, display and peripheral connectivity.
• System Reliability & DMA  CRC generator (CRC-CCITT, CRC-16), watchdog timer and 4-channel DMA for robust operation and efficient data handling.
• Human Interface  Capacitive touch key controller supporting up to 24 channels and an LED driver (10 segments × 16 commons) suitable for display and keypad functions.
• GPIO and Packages  44 programmable I/O pins in a 48-pin LQFP (7 × 7 mm, 0.5 mm pitch) surface-mount package; SWD debug interface included for development.
• Operating Range  Operating temperature range up to 105 °C and support for commercial and industrial temperature grades where specified.

Typical Applications

• Home Appliances  Control and user-interface management for appliances where sensor inputs, touch keys and LED displays are required.
• Consumer Electronics  Main controller for devices requiring multiple serial interfaces, onboard ADC and DAC for sensor and audio-related tasks.
• Motor and Drive Control  Three-phase PWM and multiple PWM/timer channels enable basic motor control and power-stage timing.
• Human-Machine Interfaces  Capacitive touch key support and integrated LED driver simplify keypad and display implementations.

Unique Advantages

• Comprehensive peripheral set: On-chip ADC, DAC, capacitive touch, LED driver, DMA and CRC reduce external component count and simplify system design.
• Flexible connectivity: Multiple UART/USART, SPI and I2C interfaces enable concurrent sensor, display and peripheral communication without external bridges.
• Wide supply range: 1.8 V to 5.5 V operation supports diverse power architectures and battery-powered designs.
• Integrated motor and timing support: 3-phase 16-bit PWM and a mix of 16/32-bit timers provide the timing resolution needed for motor control and precise PWM outputs.
• Compact, production-ready package: 48-pin LQFP with 44 I/Os offers a balance of IO density and manufacturability for surface-mount assemblies.
• Development and debugging support: SWD debug interface facilitates firmware development and validation.

Why Choose A31G213CL?

The A31G213CL positions itself as an integrated controller for appliance and consumer-electronics designs that require a 32-bit Cortex-M0+ core, moderate memory footprint and a wide set of peripherals. Its mix of analog converters, capacitive touch, LED driving, multiple serial interfaces and flexible timers provides a practical platform for systems that demand sensor interfacing, user interface control and motor/power-stage timing.

With a broad operating voltage range and temperature capability up to 105 °C, the A31G213CL is suited to designs that require robustness across diverse environments, while the LQFP-48 package and on-chip peripherals help reduce BOM and simplify board-level design.

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