A31M223CL2N

The A31M223CL2N is a 32-bit microcontroller based on the Arm Cortex-M0+ core, delivering up to 80 MHz operation and a flash accelerator for efficient code execution. It integrates up to 64 KB of code flash and 8 KB of SRAM alongside a suite of peripherals aimed at electrical appliance and motor-control applications.

Designed for embedded appliance designs, the device combines performance, low-power modes, and integrated analog and motor-control peripherals to simplify system design and reduce bill-of-materials.

Key Features

• Core – Arm Cortex-M0+ 32-bit CPU running up to 80 MHz (64 DMIPS) with flash accelerator support for improved code fetch performance.
• Memory – 64 KB code flash and 8 KB SRAM for program storage and runtime data.
• Power and Clock – Operates from 2.7 V to 5.5 V with internal HSI (32 MHz) and LSI (500 kHz) oscillators, support for external HSE/LSE crystals, PLL frequency generation up to 80 MHz, and low-power SLEEP and DEEP-SLEEP modes.
• Timers & PWM – Four 16-bit timers, one 32-bit timer, and a 16-bit MPWM generator with six-channel U/V/W phase outputs suitable for 3-phase motor control.
• Analog & Signal Chain – 12-bit ADC with 12 input channels and multiple conversion modes, one comparator, and three on-chip operational amplifiers for sensor and motor feedback signal conditioning.
• Connectivity – Communication interfaces include one SPI, two UARTs (16450 compatible), and one I2C port for peripheral and host connections.
• DMA, CRC & System – Four-channel DMA supporting 8/16/32-bit transfers and a CRC unit with multiple CRC modes; features Serial Wire Debug (SWD) and in-system programming (ISP).
• GPIO & Package – Up to 44 I/O pins with interrupt capability and multifunction mapping; supplied in a 48-LQFP package (7 × 7 mm, 0.8 mm pitch).
• Operating Range – Industrial-grade operation from −40 °C to +105 °C.

Typical Applications

• Home Appliances – Control functions for refrigerators, washing machines, dryers and dishwashers using integrated PWM, ADC and op-amps for motor and sensor control.
• Kitchen & Small Domestic Devices – Motor and user-interface control for blenders and water purifiers leveraging the MPWM generator and communication interfaces.
• Pumps & Fans – 3-phase motor control with ADC feedback and comparator/op-amp support for efficient motor drive and monitoring.

Unique Advantages

• Balanced performance and efficiency: Up to 80 MHz Cortex-M0+ core with flash accelerator delivers responsive control while supporting low-power modes for energy-sensitive designs.
• Integrated motor-control peripherals: MPWM generator, 16-bit counters, three op-amps and multiple ADC trigger sources simplify three-phase motor-drive implementations.
• Comprehensive analog front-end: 12-bit ADC with 12 channels, comparator and three op-amps enable on-chip sensor conditioning and accurate feedback loops.
• Flexible clocking and voltage support: Internal/external oscillators, PLL up to 80 MHz and a wide operating voltage range (2.7 V–5.5 V) ease design integration across supply domains.
• DMA and CRC support: Four-channel DMA and a hardware CRC unit accelerate data movement and integrity checking without CPU overhead.
• Robust operating conditions: Industrial temperature range of −40 °C to +105 °C and a compact 48-LQFP package make the device suitable for durable appliance environments.

Why Choose A31M223CL2N?

The A31M223CL2N positions itself as a highly integrated microcontroller for electrical appliance and motor-control applications, combining an 80 MHz Cortex-M0+ core with dedicated analog, PWM and timing peripherals. Its blend of on-chip ADCs, op-amps, MPWM and communication interfaces reduces external component count and simplifies system architecture.

This device is well suited to engineers designing household appliances, pumps and fans who require a compact package, robust temperature and voltage ranges, and on-chip features that accelerate development and improve system reliability. Development support includes SWD and ISP for streamlined firmware iteration.

Request a quote or submit an inquiry to sales for pricing, availability and lead-time information for A31M223CL2N.