A31G123RL

The A31G123RL from Abov is a general-purpose microcontroller built around an ARM Cortex‑M0+ core running at 40 MHz. It combines on-chip Flash and SRAM with a broad set of peripherals—timers, 12‑bit ADC, serial interfaces and an integrated LCD/LED drive—to address embedded control and consumer appliance applications.

Designed for flexible power and environmental conditions, the device operates from 1.8 V to 5.5 V and supports sleep and deep sleep modes, making it suitable for battery-assisted and mains-powered designs that require integration and reliable I/O drive capability.

Key Features

• Core  ARM Cortex‑M0+ 32‑bit core with a 40 MHz operating frequency and NVIC (nested vectored-interrupt controller) for responsive real-time control.
• Memory  64 Kbytes of internal Flash and 6 Kbytes of SRAM provide on-chip program and data storage for typical embedded firmware and application code.
• Power and Reset  Wide supply range of 1.8–5.5 V with integrated POR, LVR/LVI and an internal RC oscillator; includes an on-chip LDO to simplify power design.
• Timers & PWM  Ten general-purpose timers including 16‑bit and 32‑bit timers, a 16‑bit timer with 6‑channel PWM and dedicated 3‑phase 16‑bit PWM support for motor and power control tasks.
• Analog  12‑bit ADC with 14 input channels and 50 ksps sampling capability for sensor interfacing and system monitoring.
• Serial Interfaces  Multiple communication ports on this package: 3 × USART, 2 × UART and 3 × I2C for sensor networks, peripherals and host connectivity. SWD debug interface is provided for development.
• Display & LED Drive  Integrated LCD driver supporting up to 8×39 segments with 16‑step contrast control, plus high current sink capability (max. 120 mA across PD0–PD7) for LED outputs and indicators.
• System Reliability  16‑bit CRC generator (CRC‑16/CCITT) and a 24‑bit watchdog timer help ensure data integrity and system recovery in deployed applications.
• Low‑Power Modes  Internal RC oscillator and support for sleep and deep sleep modes to reduce power consumption during idle periods.
• Package & Environment  64‑LQFP (10×10‑0.5 mm) package with 61 general-purpose I/O pins and industrial temperature operation from −40 °C to +105 °C.

Typical Applications

• Smart Door Locks  On‑chip timers, multiple serial interfaces and low‑power modes enable secure access control, sensor integration and long battery life in electronic lock designs.
• Air Cleaners & Home Appliances  ADC channels for environmental sensing, PWM for motor control and LCD/LED drive for user interfaces make the device well suited to air cleaner and appliance control.
• General Purpose Embedded Control  A balanced mix of memory, I/O density and peripheral integration supports a wide range of consumer and industrial control applications requiring compact BOM and straightforward software development.

Unique Advantages

• Highly integrated peripheral set: Combines ADC, multiple timers, PWM variants, serial interfaces and an LCD driver on-chip to reduce external components and simplify BOM.
• Flexible power and voltage tolerance: 1.8–5.5 V supply range and internal LDO allow use in diverse power domains and simplify battery or single‑supply designs.
• Strong I/O drive capability: Dedicated high‑current sink outputs (PD0–PD7 up to 120 mA) and 61 I/Os in the 64‑LQFP package enable direct driving of indicators and interface circuits.
• Robust system integrity features: CRC‑16/CCITT and a 24‑bit watchdog timer support firmware reliability and fault recovery strategies.
• Display and user interface ready: Integrated LCD controller with contrast control and extensive digit/segment support reduces external display driver needs.
• Industrial temperature range: Specified from −40 °C to +105 °C for designs targeting harsher operating environments.

Why Choose A31G123RL?

The A31G123RL positions itself as a versatile, well‑balanced microcontroller for embedded applications that demand integrated peripherals, reliable system features and flexible power operation. Its ARM Cortex‑M0+ core, combined with 64 KB Flash, 6 KB SRAM and a comprehensive set of timers, ADC channels and serial interfaces, makes it suitable for consumer appliances, access control and general automation tasks where integration and compact design matter.

Designers benefit from the device's display-driving capability and strong I/O drive, reducing external component count and simplifying PCB layout. With industrial temperature support and on‑chip reliability features, the A31G123RL is tailored for projects requiring dependable operation across a wide range of environments.

Request a quote or submit an inquiry to receive pricing and availability information for the A31G123RL. Our team will provide the details you need for procurement and design planning.