A31G336KU

The A31G336KU is a 32-bit microcontroller based on the energy-efficient Arm Cortex‑M0+ core, delivering up to 48 MHz system clock performance. Designed for embedded and general-purpose control applications, the device combines on-chip Flash and SRAM with a broad mix of peripherals—USB Full Speed, serial interfaces, ADC, timers, DMA and system reliability features—while supporting low-voltage operation from 1.8 V to 5.5 V.

With power management modes (RUN, SLEEP, DEEP‑SLEEP) and integrated clock/reset features, the A31G336KU is suited to battery-aware designs and compact systems that require a balance of performance, peripheral integration and low-power operation.

Key Features

• Core Arm Cortex‑M0+ 32‑bit core running up to 48 MHz for efficient control and interrupt handling.
• Memory 256 KB code Flash with ECC and read protection plus 32 KB on‑chip SRAM for firmware and data.
• Operating Voltage & Power Modes Wide supply range from 1.8 V to 5.5 V with integrated LDO, POR, Low Voltage Detection/Reset (LVD/LVR/LVI) and RUN, SLEEP and DEEP‑SLEEP modes for low‑power designs.
• Analog 12‑bit A/D converter (8 analog inputs on the A31G336KU variant) and two onboard comparators for sensor interfacing and analog monitoring.
• Timers & Watchdog Multiple timers including six 16‑bit channels and two 32‑bit channels with PWM/capture/one‑shot modes, plus a 24‑bit watchdog timer for system supervision.
• Connectivity Serial interfaces tailored to embedded systems: 2 × USART, 1 × SPI, 3 × I2C and USB Full Speed (crystal‑less USB with on‑chip clock management and packet buffer SRAM).
• DMA & Peripheral Integration Four DMA channels supporting 8/16/32‑bit transfers with connectivity to internal peripherals to reduce CPU load.
• System Reliability & Security CRC calculation unit (CRC‑CCITT/CRC‑16/auto or user CRC), nested vectored interrupt controller (NVIC) and Flash read protection.
• Real‑Time & RTC Real Time Clock/Calendar (RTCC) for timekeeping and scheduling tasks.
• Package & Temperature Compact 32‑QFN package (32‑QFN‑0505, 0.50 mm pitch; 5 × 5 mm footprint) with operating range from −40 °C to 85 °C and 22 GPIOs on the A31G336KU variant.

Typical Applications

• Industrial Control — Timers, ADC channels and robust watchdog/CRC support machine control, monitoring and small automation nodes.
• USB‑Enabled Peripherals — Crystal‑less USB Full Speed connectivity and packet buffer SRAM suit compact USB device implementations.
• Battery‑Powered Devices — Wide input voltage range and sleep/deep‑sleep modes enable low‑power sensor hubs and handheld instruments.
• Sensor Interfaces & Data Acquisition — 12‑bit ADC, comparators and multiple serial buses (I2C, SPI, USART) facilitate analog and digital sensor integration.

Unique Advantages

• Balanced performance and efficiency: Cortex‑M0+ operation at up to 48 MHz provides responsive control while maintaining low system overhead.
• High on‑chip integration: 256 KB Flash with ECC, 32 KB SRAM, USB Full Speed, multiple timers and serial interfaces reduce external components and BOM.
• Flexible power and voltage support: 1.8–5.5 V supply range plus LVD/LVR/LVI and multiple power modes simplify designs across supply environments.
• DMA‑assisted throughput: Four DMA channels and peripheral connectivity offload data movement from the CPU for deterministic performance.
• Compact package footprint: 32‑QFN package with 22 I/O makes the part suitable for space‑constrained PCBs while retaining key peripherals.
• Embedded system reliability features: CRC unit, NVIC with multiple interrupts and Flash read protection support robust, maintainable firmware.

Why Choose A31G336KU?

The A31G336KU delivers a practical combination of Cortex‑M0+ processing, substantial on‑chip Flash and SRAM, and a broad peripheral set—including USB Full Speed, multiple serial buses, ADC and DMA—targeted at compact embedded designs. Its wide voltage tolerance and sleep modes make it adaptable to both powered and battery‑sensitive applications.

This variant is well suited for engineers seeking an integrated microcontroller in a small QFN package with sufficient I/O and peripheral resources for sensor interfaces, USB peripherals and general‑purpose control tasks, while benefiting from on‑chip reliability and security features such as ECC and CRC support.

If you would like pricing, lead time or a formal quote for the A31G336KU, request a quote or submit an inquiry to our sales team for details on availability and ordering.