A31G112KN

The A31G112KN is a 32 KB Flash, 4 KB SRAM microcontroller built around a 32-bit ARM Cortex-M0+ core running at up to 40 MHz. Designed for embedded control, it delivers a balanced mix of processing, analog and digital peripherals for applications such as home appliances, smart door locks, air cleaners and other general-purpose designs.

With an operating voltage range of 1.8 V to 5.5 V, on-chip sleep and deep-sleep modes, and an internal RC oscillator, the A31G112KN provides flexible system integration and power management for cost-sensitive embedded products.

Key Features

• Core  The ARM Cortex-M0+ 32-bit core delivers deterministic control performance at up to 40 MHz for real-time embedded tasks.
• Memory  32 Kbytes of internal Flash program memory combined with 4 Kbytes of SRAM for code and data storage.
• Voltage & Power  Wide supply range of 1.8–5.5 V, internal RC oscillator and LDO support, plus sleep and deep-sleep modes to reduce runtime power consumption.
• Timers & PWM  Multiple general-purpose timers including 16-bit timers, 32-bit timers and a 16-bit timer with six-channel PWM for motor control, timing and waveform generation.
• Analog  12-bit ADC with 5 input channels and 50 ksps sampling capability for sensor interfacing and analog measurement.
• Interfaces  Dual USART/UART and dual I2C interfaces provide flexible serial communications and peripheral connectivity.
• Display & LED Drive  Integrated LCD driver/controller (up to 8×23 segments) with 16-step contrast control and strong sink capability—up to 120 mA sink on six output pins (PD0–PD5)—for user interfaces and LED indication.
• System Reliability  On-chip features including POR (Power-On Reset), LVR/LVI (low-voltage reset/interrupt), watchdog timer and 16-bit CRC (CRC-16/CRC-CCITT) enhance system robustness and data integrity.
• I/O & Packaging  29 general-purpose I/Os available in a compact 32-LQFP package (7×7 mm, 0.8 mm pitch) suitable for surface-mount designs.
• Operating Range  Industrial temperature capability from −40 °C to +105 °C for deployment in demanding environments.

Typical Applications

• Home Appliances  Embedded control for appliances where integrated timers, PWM and ADC simplify motor control, sensor reading and user-display management.
• Smart Door Locks  Secure, low-power control of actuators and sensors with UART/I2C connectivity for peripherals and peripherals management.
• Air Cleaners  Sensor interfacing and multi-speed fan control using the ADC and multi-channel PWM timers, plus on-board display driving for user feedback.
• General-Purpose Embedded Systems  Compact, feature-rich MCU option for a wide range of consumer and industrial control tasks requiring mixed-signal integration.

Unique Advantages

• Highly integrated peripheral set: Combines ADC, multi-channel PWM, multiple timers, CRC generator and LCD driver to reduce external components and overall BOM.
• Flexible power support: 1.8–5.5 V operation and internal oscillator/LDO support simplify power-supply design across varied product lines.
• Compact package with extensive I/O: 29 GPIOs in a 32-LQFP package deliver a space-efficient footprint for small to medium form-factor products.
• Industrial temperature capability: −40 °C to +105 °C rating enables deployment in temperature-challenging environments.
• Robust system features: POR, LVR/LVI, watchdog timer and CRC hardware provide built-in safety and data integrity mechanisms for reliable operation.
• Display-ready platform: On-chip LCD driver and high sink-current outputs support rich user interfaces without external drivers.

Why Choose A31G112KN?

The A31G112KN positions itself as a cost-effective, compact microcontroller that balances processing capability with a broad set of on-chip peripherals. Its ARM Cortex-M0+ core, combined with 32 KB Flash, 4 KB SRAM and a versatile peripheral mix, makes it well suited for embedded products that require sensor interfacing, user displays and real-time control.

Designed for manufacturers targeting home appliances, smart locks, air purification and general-purpose embedded systems, the A31G112KN delivers a practical combination of integration, power flexibility and industrial temperature range backed by ABOV Semiconductor product engineering and documentation.

Request a quote or contact sales to discuss pricing, availability and how the A31G112KN can fit your next embedded design.