A31G112CL

The A31G112CL is a 32 Kbyte Flash, 4 Kbyte SRAM microcontroller built around the ARM Cortex-M0+ core. It targets embedded control applications such as home appliances, smart door locks and air cleaners, delivering a balance of processing efficiency, integrated peripherals and flexible power supply operation.

Operating from 1.8 V to 5.5 V and running up to 40 MHz, the device integrates ADC, timers, serial interfaces, LCD/LED display drive and system reliability features to simplify designs that require sensor interfacing, motor or UI control and low‑power operation.

Key Features

• Core  ARM Cortex-M0+ 32‑bit core running up to 40 MHz for efficient embedded control and real-time tasks.
• Memory  32 Kbytes on‑chip Flash and 4 Kbytes SRAM suitable for compact application firmware and data buffering.
• Power and Supply  Wide supply range (1.8–5.5 V) with power management including Power-On Reset (POR), Low Voltage Reset (LVR) and Low Voltage Interrupt (LVI).
• Timers & PWM  Multiple timers including 16‑bit timers, 32‑bit timers and a 16‑bit timer with six-channel/three‑phase PWM capability for motor and power-control tasks.
• Analog  12‑bit ADC with 11 input channels (50 ksps) for multi‑channel sensor acquisition and control feedback.
• Connectivity  Dual USART/UART interfaces and dual I2C interfaces for serial communications and peripheral expansion.
• Display & LED Drive  Integrated LCD driver/controller (up to 8 × 23 segments) with 16‑step contrast control and dedicated high‑current LED sink capability on PD0–PD5 (max. 120 mA sink across six pins).
• System Reliability  24‑bit Watchdog Timer and 16‑bit CRC generator (CRC‑16/CRC‑CCITT) for safety and data integrity checks.
• Clocking & Oscillators  Support for internal and external oscillators plus clock monitoring functions for stable system timing.
• Package & Temp  48‑lead LQFP (7.0 × 7.0 mm, 0.5 mm pitch), 45 I/Os, and an operating temperature range covering −40 °C to +105 °C (industrial grade).

Typical Applications

• Home Appliances  Control of motors, sensors and user interfaces in appliances where integrated timers, ADC and display drive reduce system complexity.
• Smart Door Locks  Secure, low‑power control for lock actuation and sensor monitoring using integrated PWM, timers and ADC channels.
• Air Cleaners  Fan and flow control, sensor acquisition and user display management enabled by PWM timers, ADC and LCD driver features.
• General Purpose Embedded Control  Compact automation and control systems that require a mix of serial peripherals, GPIO and on‑chip memory.

Unique Advantages

• Highly integrated peripheral set: On‑chip ADC, timers, dual serial interfaces, LCD driver and CRC reduce BOM and improve system integration.
• Wide supply flexibility: 1.8–5.5 V operation accommodates diverse sensor and power‑domain requirements without additional regulators.
• Display and LED drive capability: Dedicated LCD controller and high‑current sink outputs simplify user‑interface and indicator designs.
• Real‑time control support: Multiple 16‑bit and 32‑bit timers plus multi‑channel PWM enable motor control and precise timing functions.
• Industrial temperature rating: −40 °C to +105 °C supports deployments in demanding environmental conditions.
• Compact package with abundant I/O: 48‑LQFP with 45 general I/Os supports mid‑density board designs while keeping a small footprint.

Why Choose A31G112CL?

The A31G112CL is positioned for designers who need a compact, dependable microcontroller that combines an ARM Cortex‑M0+ core with a broad set of peripherals for embedded control. Its memory footprint, integrated ADC, PWM/timer resources and display drive make it well suited to appliance control, access systems and other consumer or industrial designs that benefit from consolidated functionality.

Backed by Abov Semiconductor documentation and available in a 48‑LQFP package with industrial temperature support, the A31G112CL offers a balanced platform for developing cost‑effective, scalable products with straightforward firmware and hardware integration.

Request a quote or submit an RFQ to receive pricing and lead‑time details for the A31G112CL.