Microchip Technology, Inc. Microcontrollers ATSAM3N4AA-MU

The ATSAM3N4AA-MU is a 32-bit microcontroller from Quarktwin Technology Ltd. based on the ARM Cortex-M3 architecture, operating at a maximum frequency of 48 MHz. It features 256 Kbytes of embedded Flash memory and 24 Kbytes of SRAM, making it suitable for a variety of applications requiring moderate processing power and memory capacity. The device supports multiple communication interfaces, including two USARTs, two UARTs, two I2C-compatible interfaces, and three SPI interfaces, providing flexibility for connectivity. This microcontroller includes a range of integrated peripherals such as a 10-bit ADC with up to 16 channels, a 10-bit DAC, and multiple timers for PWM and general-purpose timing functions. It operates within a voltage range of 1.62V to 3.6V and is available in a compact 48-lead QFN package, which is advantageous for space-constrained designs. The ATSAM3N4AA-MU also incorporates low power modes, achieving down to 3 ¬µA in backup mode, making it suitable for battery-operated devices. With its pin-to-pin compatibility with the SAM3S series, the ATSAM3N4AA-MU offers an effective migration path for applications transitioning from 8/16-bit to 32-bit microcontrollers, particularly in cost-sensitive, high-volume environments. The operating temperature range is industrial-grade, from -40¬8C to 85¬8C, ensuring reliability in demanding conditions.