A31G336CL

The A31G336CL is a 32-bit microcontroller based on the energy-efficient ARM Cortex-M0+ core, designed for embedded control applications that require a compact footprint and integrated peripheral set. It combines up to 256 KB of code flash (with ECC and read protection) and 32 KB of SRAM with a rich mix of analog, timing and communication peripherals.

Operating from 1.8 V to 5.5 V and running up to 48 MHz, the A31G336CL targets embedded systems that need deterministic control, sensor interfacing and USB connectivity while offering flexible power modes and a robust set of system reliability features.

Key Features

• Core Arm Cortex-M0+ 32‑bit core supporting operation up to 48 MHz for efficient embedded control and processing.
• Memory 256 KB code Flash with ECC and read protection, plus 32 KB on-chip SRAM for program and data storage.
• Power and Clock Wide operating voltage range 1.8–5.5 V; RUN, SLEEP and DEEP‑SLEEP modes; internal RC and external oscillator options; clock monitoring and power management functions; Low Voltage Detection/Reset (LVI/LVR) and POR.
• Timers and PWM Multiple timer resources including six 16‑bit timer channels and two 32‑bit timers supporting timer/counter, one‑shot, PWM and capture modes with a 12‑bit prescaler.
• Analog and Sensing 12‑bit A/D converter with 10 analog input channels (A31G336CL) and up to 1 Msps conversion rate, plus two on‑chip comparators for analog monitoring.
• Connectivity USB 2.0 Full Speed with crystal‑less clock management and on‑chip packet buffer SRAM; multiple serial interfaces including four USART ports, three I2C ports and two SPI ports.
• DMA and Peripheral Integration Four‑channel DMA supporting 8/16/32‑bit transfers across internal peripherals to reduce CPU load and accelerate data movement.
• System Reliability CRC calculation unit (multiple CRC modes), 24‑bit watchdog timer with reset/interrupt options, nested vectored interrupt controller (NVIC) with 31 interrupt sources, and flash read protection.
• Real‑Time and Debug Real Time Timer and Calendar (RTCC) for timekeeping and scheduling, and Serial Wire Debug (SWD) interface for development and debug.
• GPIO and Package 37 I/O pins in a 48‑pin LQFP surface‑mount package (7×7 mm, 0.5 mm pitch); rated for operation from −40 °C to 85 °C.

Typical Applications

• Embedded control and automation — Use the Cortex‑M0+ core, multiple timers and NVIC for deterministic control tasks, motor timing and event scheduling.
• Sensor interfacing and data acquisition — On‑chip 12‑bit ADC, comparators and DMA simplify analog signal capture and reduce CPU overhead for sensor hubs and monitoring nodes.
• USB‑enabled devices and peripherals — Built‑in USB Full Speed with crystal‑less operation and packet buffer SRAM supports USB connectivity in compact designs.
• Portable and battery‑powered equipment — Wide 1.8–5.5 V supply range plus sleep and deep‑sleep low power modes enable flexible power architectures and single‑cell operation scenarios.

Unique Advantages

• Energy‑efficient 32‑bit processing: Cortex‑M0+ core delivers 32‑bit performance at low power and supports control workloads up to 48 MHz.
• High on‑chip integration: Flash with ECC, SRAM, ADC, comparators, USB, multiple serial interfaces and DMA reduce external components and simplify BOM.
• Flexible power and clocking: 1.8–5.5 V operation, internal/external oscillators and multiple power modes allow design flexibility across supply schemes.
• Built for reliable operation: Flash read protection, CRC unit, watchdog timer, LVI/LVR and POR provide layers of system integrity and safety features.
• USB capability without crystal: Crystal‑less USB Full Speed with on‑chip packet buffer SRAM enables compact USB‑connected products with fewer external components.
• Compact commercial packaging: 48‑pin LQFP (7×7 mm) surface‑mount package and −40 °C to 85 °C rating support space‑constrained designs and broad environmental use.

Why Choose A31G336CL?

The A31G336CL pairs an energy‑efficient ARM Cortex‑M0+ core with a comprehensive set of on‑chip peripherals—memory with ECC, ADC, multiple timers, USB Full Speed, DMA and serial interfaces—making it a balanced choice for embedded control, sensor interfacing and USB‑enabled applications. Its wide supply range and low‑power modes provide flexible deployment across battery and system‑powered designs.

Delivered in a compact 48‑pin LQFP package and backed by ABOV Semiconductor’s A31G336 family documentation, the A31G336CL offers a robust, well‑specified foundation for designs that need integrated functionality, system reliability and a small footprint.

Request a quote or contact sales to discuss part availability, pricing and how the A31G336CL can meet your design requirements.