A31G336IU

The A31G336IU is a 32-bit general-purpose microcontroller from Abov built around an energy-efficient ARM Cortex-M0+ core running up to 48 MHz. It combines a rich peripheral set with on-chip memory to address embedded designs that require balanced processing performance, peripheral integration and flexible power operation.

With 256 KB of code Flash (with ECC), 32 KB of SRAM, a wide 1.8 V to 5.5 V supply range and SLEEP/DEEP-SLEEP modes, the A31G336IU is suited for a broad range of embedded applications requiring USB connectivity, analog sensing and multiple timer and communications resources.

Key Features

• Core — ARM Cortex-M0+ 32-bit processor running up to 48 MHz for efficient control and signal-processing tasks.
• Memory — 256 KB code Flash memory (with ECC) and 32 KB SRAM for application code and runtime data.
• Supply and Power Management — Operates from 1.8 V to 5.5 V and includes POR, LDO, Low Voltage Reset (LVR) and Low Voltage Indicator (LVI); supports RUN, SLEEP and DEEP-SLEEP power modes.
• Timers and RTC — Multiple timers including six 16-bit and two 32-bit timers plus a Real Time Timer and Calendar (RTCC) for scheduling, PWM and timing functions; includes a 24-bit Watch Dog Timer.
• Analog and Mixed-Signal — 12-bit ADC with 9 channels and two comparators for sensor interfacing and analog monitoring.
• Connectivity — Integrated communications: USB 1.1 Full Speed, I2C (3 ports), SPI (2 ports) and USART (3 ports) to connect peripherals and host interfaces.
• DMA and System Utilities — Four-channel DMA supporting 8/16/32-bit transfers across internal peripherals, plus a CRC calculation unit for data integrity checks.
• Clocking and Oscillators — Internal RC oscillator with support for external clock sources and system clock monitoring.
• Package and I/O — 40-QFN package (5 × 5 mm, 0.4 mm pitch) with 29 available I/O lines; industry-standard surface-mount footprint.
• Temperature Range — Industrial operating temperature range of −40 °C to 85 °C.

Typical Applications

• General-purpose embedded systems — Compact control and monitoring applications that benefit from an integrated MCU with timers, ADC and communications peripherals.
• USB-enabled peripherals — Devices requiring Full Speed USB connectivity alongside MCU control and on-chip packet buffer memory.
• Battery-powered products — Low-power modes and wide supply voltage (1.8 V–5.5 V) enable efficient operation across battery and mixed power systems.
• Sensor hubs and data acquisition — 12-bit ADC channels, comparators and DMA simplify sensor interfacing and reduce CPU overhead for continuous sampling.

Unique Advantages

• Balanced performance and efficiency: Cortex-M0+ at up to 48 MHz provides responsive control while keeping power consumption manageable.
• High on-chip integration: 256 KB Flash with ECC, 32 KB SRAM, USB, multiple serial interfaces and timers reduce external component count and BOM.
• Flexible power and reset management: POR, LDO, LVR and LVI plus SLEEP/DEEP-SLEEP modes support robust operation across varying supply conditions.
• Fast peripheral data movement: Four-channel DMA enables low-overhead transfers between peripherals and memory, improving real-time responsiveness.
• Compact package with plentiful I/O: 40-QFN (5 × 5 mm) offers 29 usable I/Os in a small surface-mount form factor for space-constrained designs.
• Designed for dependable connectivity: USB 1.1 Full Speed plus multiple USART/I2C/SPI ports support a wide range of host and peripheral interfaces.

Why Choose A31G336IU?

The A31G336IU positions itself as a versatile, integrated microcontroller for designers who need a combination of processing capability, peripheral density and flexible power operation. Its Cortex-M0+ core, sizeable Flash and SRAM, and comprehensive peripheral set make it well suited for embedded projects that require USB connectivity, analog sensing, timer-driven control and reliable system management.

As a member of the A31G336 family, the A31G336IU delivers a compact 40‑QFN package option with 29 I/Os and a wide supply and temperature range, offering a scalable platform for developers targeting general-purpose embedded systems, USB peripherals and low-power applications.

Request a quote or contact sales to discuss pricing, lead times and sample availability for the A31G336IU.