A31G112SN

The Abov A31G112SN is a 32‑bit microcontroller based on the ARM Cortex‑M0+ core, offering 32 Kbytes of on‑chip Flash and 4 Kbytes of SRAM with operation up to 40 MHz. It supports a wide supply range (1.8–5.5 V) and is built for embedded control applications that require integrated analog, timers, display and serial connectivity.

Targeted applications include home appliances, smart door locks, air cleaners and general‑purpose embedded systems where a compact, well‑integrated MCU simplifies system design and reduces component count.

Key Features

• Core & Performance ARM Cortex‑M0+ 32‑bit core running up to 40 MHz for efficient control and processing in compact embedded applications.
• Memory 32 Kbytes of internal Flash for program storage and 4 Kbytes of SRAM for runtime data.
• Power & Voltage Management Wide operating supply range of 1.8–5.5 V with POR, LVR and LVI protections, integrated LDO, internal RC oscillator and support for external oscillators; sleep and deep sleep modes for low‑power operation.
• Timers & PWM Multiple timers including 16‑bit and 32‑bit timers, six general‑purpose timers with periodic, one‑shot, PWM and capture modes, plus 16‑bit timer PWMs suitable for motor or actuator control (including 3‑phase PWM capability).
• Analog & Data Conversion 12‑bit ADC with 9 input channels (50 ksps capability noted in the family datasheet) for sensor interfacing and analog measurement tasks.
• Connectivity Rich serial interfaces including USART (UART + SPI), UART and I2C support for device and host communications.
• Display & LED Drive Integrated LCD driver/controller (up to 8 × 23 segments) with duty selectable and resistor bias, 16‑step contrast control and high‑current LED sink capability (up to 120 mA total sink across six PD0–PD5 outputs) for front‑panel displays and indicators.
• System Reliability & Utilities 24‑bit watchdog timer, 16‑bit CRC generator (CRC‑CCITT, CRC‑16) and clock monitoring functions to support safe and verifiable operation.
• Package & Temperature 44‑LQFP package (10 × 10 mm, 0.8 mm pitch) with 41 general‑purpose I/Os and an operating temperature range of −40 to 105 °C suitable for industrial‑grade applications.

Typical Applications

• Home Appliances — Control and user‑interface tasks including sensor reading, motor timing and display driving using integrated ADC, timers/PWM and LCD controller.
• Smart Door Locks — Secure, low‑power control with persistent I/O, ADC for sensor inputs and watchdog/voltage monitoring for robust operation.
• Air Cleaners — Sensor acquisition, fan control and status display in a single MCU with ADC channels, PWM timers and LCD/LED drive.
• General‑Purpose Embedded Control — Compact systems requiring mixed analog/digital I/O, multiple serial interfaces.

Unique Advantages

• Highly integrated feature set: On‑chip Flash, SRAM, ADC, timers, LCD driver, CRC and multiple serial interfaces reduce external components and simplify BOM.
• Flexible power envelope: 1.8–5.5 V operation plus POR/LVR/LVI protections enable designs across battery and mains‑powered products.
• Display and indicator ready: Dedicated LCD controller with contrast control and high‑current LED sink outputs removes the need for external display drivers in many designs.
• Industrial temperature capability: −40 to 105 °C rating supports deployments in harsher environments where extended temperature range is required.
• Family scalability: Part of the A31G11x series offering multiple memory and package options to scale products across similar hardware and firmware platforms.

Why Choose A31G112SN?

The A31G112SN balances a compact memory footprint with a broad set of integrated peripherals—making it well suited for embedded designs that require ADC inputs, multiple timers/PWM channels, display control and serial connectivity. Its wide supply voltage range and industrial temperature rating make it adaptable to both battery‑powered and mains‑connected products.

As a member of the A31G11x family, the A31G112SN provides designers with a clear upgrade path across package and feature variants while minimizing board‑level complexity. Its combination of on‑chip peripherals and control‑oriented Cortex‑M0+ performance supports reliable, scalable product development for a range of consumer and industrial applications.

Request a quote or submit a product inquiry to begin evaluation and integration of the A31G112SN into your next embedded design project.