Microchip ATSAM3S1AB-AU 32-bit ARM Cortex M3 Microcontroller, 20 MHz, 64kB Flash, 48-Pin LQFP

Microchip ATSAM3S1AB-AU 32-bit ARM Cortex M3 microcontroller delivers robust performance, reliable operation and flexible connectivity for a range of embedded systems. The device is based on the ARM Cortex-M3 core, supporting efficient code execution with RISC architecture and offering a maximum clock frequency of 20 MHz. It is engineered for demanding industrial, commercial and automotive applications where stable operation and low power consumption are critical.

Equipped with 64kB FLASH program memory, this microcontroller accommodates complex firmware, while the 16kB RAM ensures rapid data processing and storage. The highly integrated design supports multiple interfaces - including SPI, 2 Wire, and USART - providing seamless peripheral integration for sensors, actuators and communication modules in your systems.

32-bit ARM Cortex M3 core for powerful, energy-efficient performance. Up to 20 MHz clock frequency for fast processing of embedded codes. 64kB FLASH memory for program storage and adaptability. 48-pin LQFP package for compact, flexible mounting options.

Broad voltage supply range from 1.8V up to 5.5V for diverse hardware environments. Operating temperature between -40°C and +85°C for industrial robustness. Support for up to 23 programmable I/O pins and advanced ADC/DAC features.

RISC instruction set and integrated timers, comparators, and communication ports.

The ATSAM3S1AB-AU is especially useful in industrial automation, sensor modules, laboratory instrumentation, embedded control, smart metering, and commercial electronics requiring precision and reliability. Integrated analog and digital converters (DACs/ADCs), as well as analogue comparators and timers, provide additional functionality for signal processing and time-sensitive operations.

The microcontroller maintains compliance with Green, Halide Free, and RoHS standards, making it suitable for environmentally conscious designs and global manufacturing requirements.

For engineers seeking a robust solution for new or retrofit product designs, the ATSAM3S1AB-AU from Microchip simplifies system design and reduces board footprint, while offering a comprehensive feature set and application breadth.

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