A31G336RL

The A31G336RL is a 32-bit general-purpose microcontroller built on the energy-efficient Arm® Cortex®-M0+ core. It combines up to 256 KB of code Flash with 32 KB of SRAM and a comprehensive peripheral set to address embedded control, sensor interfacing and USB-connected device designs.

Designed for flexible supply and low-power operation, the A31G336RL supports 1.8 V to 5.5 V operation, multiple low-power modes and integrated connectivity blocks to simplify system design while keeping BOM and power budgets constrained.

Key Features

• Core  Arm® Cortex®-M0+ 32-bit core with operation up to 48 MHz (32 MHz option available).
• Memory  256 KB code Flash with ECC and read protection for code integrity and 32 KB on-chip SRAM.
• Power and Clocks  Wide operating voltage 1.8–5.5 V, internal and external oscillator support, low-voltage detection and reset (LVD/LVR/LVI), plus RUN, SLEEP and DEEP-SLEEP modes.
• Timers  Rich timer set including six 16-bit timer channels and two 32-bit timers with PWM, capture, one-shot and timer/counter modes.
• Analog  12-bit ADC with up to 16 analog input channels and 1 MSps conversion capability; two onboard comparators for analog event detection.
• Connectivity  USB 2.0 Full-Speed device support, four USART ports, three I²C ports and two SPI ports for diverse serial interfacing.
• DMA & USB  Four-channel DMA supporting 8/16/32-bit transfers across 19 internal peripherals; USB supports crystal-less operation, a dedicated 1024-byte packet buffer and multiple endpoints.
• System Reliability  CRC calculation unit (CRC-CCITT, CRC-16 and user-defined modes), 24-bit watchdog timer with reset and periodic interrupt support, POR and clock monitoring.
• GPIO & Interrupts  Up to 53 general-purpose I/O pins, all mappable to external interrupt vectors and managed via NVIC with 31 interrupt sources.
• Package & Temperature  Available in 64-LQFP package (10 × 10 mm, 0.5 mm pitch) and rated for –40 to 85 °C operating temperature.

Typical Applications

• USB-connected devices  Implement USB Full-Speed peripherals with the integrated USB block and dedicated packet buffer for device endpoints.
• Sensor hubs & data acquisition  Leverage the 12-bit ADC with up to 16 channels and DMA to capture and transfer sensor data efficiently.
• Real-time control and motor/actuator timing  Use multiple 16-bit and 32-bit timers with PWM and capture modes for precise control tasks.
• Battery-powered and low-power applications  Wide 1.8–5.5 V supply range and SLEEP/DEEP-SLEEP modes enable flexible power architectures and reduced standby consumption.

Unique Advantages

• Comprehensive peripheral integration: USB, multiple serial ports (USART/I²C/SPI), ADC, comparators, timers and CRC reduce external components and simplify design.
• Memory integrity and security: 256 KB Flash with ECC and read-protection features help protect code and improve system reliability.
• Efficient data movement: Four-channel DMA accelerates transfers between peripherals and memory, offloading the CPU for real-time tasks.
• Crystal-less USB capability: Integrated USB clock management with on-chip buffering supports Full-Speed USB without a mandatory external crystal.
• Flexible supply and robust reset controls: Wide 1.8–5.5 V operating range combined with POR, LVR and LVD provides design flexibility across power schemes.
• Industrial temperature range in a compact package: –40 to 85 °C rating in a 64-LQFP 10 × 10 mm footprint for space-constrained applications.

Why Choose A31G336RL?

The A31G336RL positions itself as a balanced platform for embedded designers seeking a 32-bit Cortex‑M0+ MCU with strong peripheral integration and robust memory features. Its combination of USB Full‑Speed support, multi-channel ADC, abundant timers and DMA makes it suitable for embedded control, sensor interfacing and USB device applications where integration and power flexibility matter.

Backed by on-chip reliability features—ECC-protected Flash, watchdog, reset and voltage monitoring—the A31G336RL delivers a scalable, dependable building block for product designs that require long-term maintainability and straightforward system integration.

Request a quote or submit a pricing and lead-time inquiry to evaluate A31G336RL for your next design.