A31G314CLN

The A31G314CLN is a 32-bit microcontroller based on the ARM Cortex-M0+ core, engineered as a main controller for a wide range of appliance and embedded designs. It pairs a 48 MHz Cortex-M0+ CPU with ample on-chip Flash and SRAM and a broad set of integrated peripherals for sensor interfacing, motor control and user-interface tasks.

Designed for integration and flexibility, the A31G314CLN supports multiple serial interfaces, multi-channel ADC/DAC, PWM and dedicated display/LED drivers, enabling compact, single-chip system designs across consumer and industrial appliance applications.

Key Features

• Core ARM Cortex-M0+ 32-bit core running at 48 MHz for compact, efficient control and deterministic interrupt handling.
• Memory 128 Kbytes on-chip Flash program memory and 16 Kbytes SRAM for application code and runtime data.
• Power and Clock Wide supply range from 1.8 to 5.5 V and support for external and internal oscillators with on-chip PLL for flexible clocking.
• Timers & PWM Seven 16-bit timers, two 32-bit timers and a 3-phase 16-bit PWM block for motor-control and precise timing functions.
• Analog 12-bit ADC with 11 channels and 150 ksps sampling rate, plus a 12-bit DAC and two comparators for mixed-signal control and sensor interfacing.
• Interfaces Multiple serial connectivity options including I2C (2), UART (2) and USART (2) for flexible peripheral communication.
• System & DMA CRC, 4-channel DMA and a watchdog timer to support reliable data movement and system supervision.
• Display & LED Integrated LCD driver (21×8) and LED/high-current port support (11×25) for on-board user interfaces and status indication.
• Human Interface Touch key support with 13 channels for capacitive button or slider inputs.
• GPIO 43 general-purpose I/O pins for versatile board-level connectivity.
• Package & Temperature 48-LQFP package (7×7 mm, 0.5 mm pitch) and an operating temperature range of -40 to 85 °C for broad environmental suitability.

Typical Applications

• Home Appliances — Acts as a main controller for appliances requiring motor control, sensor interfaces and user displays.
• Consumer Electronics — Manages user interfaces, touch keys and mixed-signal sensors in compact consumer devices.
• Motor and Power Control — Implements 3-phase PWM and multiple timers for motor-drive and power-conversion applications.
• Instrumentation & Measurement — Uses multi-channel 12-bit ADC and DAC for accurate sensor acquisition and analog output.

Unique Advantages

• Integrated peripheral set: Combines ADC, DAC, PWM, LCD and LED drivers plus touch-key support to reduce external component count and simplify board design.
• Flexible communications: Multiple UART/USART and I2C channels to interface with sensors, modules and subsystems.
• Real-time control capability: Dedicated PWM and an array of timers together with DMA support enable responsive motor and timing control with minimized CPU overhead.
• Wide supply and temperature range: 1.8–5.5 V operation and -40 to 85 °C rating support designs that span battery-powered to mains-connected appliances and wider environmental conditions.
• Compact package: 48-LQFP (7×7 mm) delivers a small footprint for space-constrained PCB layouts while providing 43 I/O lines.

Why Choose A31G314CLN?

The A31G314CLN positions itself as a versatile, integration-focused microcontroller for appliance and embedded-system designers who need a balanced combination of CPU performance, on-chip memory and a comprehensive peripheral suite. Its mix of analog converters, PWM resources, display/LED drivers and multiple serial interfaces supports consolidated system designs that lower BOM and simplify firmware development.

This device is well suited to developers seeking a scalable Cortex-M0+ platform with robust on-chip resources for sensor interfacing, motor control and user-interface tasks, offering long-term value through reduced external components and a compact package choice.

Request a quote or contact sales to discuss pricing, lead times and sample availability for the A31G314CLN.