A31M223KNN

The A31M223KNN is a 32-bit microcontroller based on an Arm Cortex-M0+ core running up to 80 MHz. It combines up to 64 KB of on-chip Flash and 8 KB of SRAM with integrated peripherals targeted at home appliance and embedded control applications that require efficient motor control, analog sensing and compact board-level integration.

Designed for systems requiring a balance of performance and integration, the device offers multi-channel PWM, a 12-bit ADC, DMA, and multiple serial interfaces in a 32-pin LQFP package while supporting a wide supply range and extended operating temperature.

Key Features

• Core and Performance Arm Cortex-M0+ 32-bit CPU running up to 80 MHz (64 DMIPS) with flash accelerator support for responsive control tasks.
• Memory 64 KB on-chip Flash program memory and 8 KB SRAM for application code and runtime data.
• Power and Clock Operates from 2.7 V to 5.5 V and supports internal and external oscillators plus a PLL to reach the 80 MHz system frequency; includes low-power SLEEP and DEEP-SLEEP modes and POR/LVR/LVI reset features.
• Timers and PWM Multi-timer subsystem with four 16-bit timers and one 32-bit timer, plus a 3-phase MPWM generator with 16-bit up/down counters for motor-drive waveforms and synchronized ADC triggers.
• Analog & Data Conversion 12-bit ADC (single ADC block) with 10 channels and up to 1.5 Msps sampling rate, plus comparator and two operational amplifiers for sensor front-end and signal conditioning.
• Connectivity Standard serial interfaces including I2C, SPI and UART/USART for sensor, display and peripheral communications.
• DMA, CRC and System Reliability Four-channel DMA for efficient peripheral data transfers and a CRC calculation unit supporting multiple CRC formats to assist data integrity checks.
• Debug and Development Support Serial Wire Debug (SWD) interface for in-circuit debugging and development.
• GPIO and Package 30 general-purpose I/O pins available in a 32-LQFP package (7×7 mm, 0.8 mm pitch); operating temperature −40 °C to +105 °C.

Typical Applications

• Home Appliances Control refrigerators, washing machines, dryers and dishwashers using integrated PWM and ADC resources for motor drive and sensor monitoring.
• Motor Control Implement three-phase motor control and commutation with the MPWM generator and synchronized ADC triggers for current/voltage sensing.
• Consumer and Embedded Control Manage user interfaces, sensors and communications in consumer devices with compact footprint and mixed-signal peripherals.
• Pumps and Fans Drive and monitor pumps or fans where PWM-based speed control and analog feedback are required within a single MCU solution.

Unique Advantages

• Highly integrated peripherals: On-chip MPWM, ADC, comparators, op-amps and multiple timers reduce external component count and simplify system design.
• Flexible performance envelope: 80 MHz Cortex-M0+ core and PLL allow responsive control while internal/external oscillator options support a range of clocking strategies.
• Efficient data handling: Four-channel DMA and CRC engine streamline bulk transfers and integrity checks without overloading the CPU.
• Wide supply and temperature range: 2.7 V to 5.5 V operation and −40 °C to +105 °C rating enable reliable operation across a broad set of embedded environments.
• Compact package: 32-LQFP (7×7 mm, 0.8 mm pitch) provides a small footprint for space-constrained PCBs while offering ample I/O for typical appliance control tasks.
• Developer-friendly: SWD debug support and standard serial interfaces accelerate firmware development and system bring-up.

Why Choose A31M223KNN?

The A31M223KNN is positioned for embedded and home-appliance designs that need a balanced combination of control performance, analog capability and system integration. With a Cortex-M0+ core at 80 MHz, multi-channel PWM and a fast 12-bit ADC, the device is well suited for motor-drive, sensor acquisition and mixed-signal control tasks.

Its wide voltage range, extended temperature rating and compact 32-LQFP package make it a practical choice for designers seeking a single-chip solution that reduces BOM, simplifies board layout and provides the peripheral set required for robust embedded systems.

Request a quote or submit an inquiry for pricing and availability of the A31M223KNN to evaluate it for your next embedded or home-appliance project.