ATSAME51N20A

The ATSAME51N20A is a high-performance 32-bit ARM Cortex-M4 microcontroller from Microchip Technology, featuring a maximum operating frequency of 120 MHz and a floating-point unit (FPU) for efficient signal processing. It includes up to 256 KB of flash memory and 64 KB of SRAM, enabling robust program storage and fast data access. The device supports multiple low-power modes, including sleep, idle, and standby, making it ideal for battery-powered applications requiring extended operational life. This microcontroller integrates advanced peripherals such as a 12-bit analog-to-digital converter (ADC), two digital-to-analog converters (DACs), and a programmable gain amplifier (PGA). It also features multiple communication interfaces including UART, SPI, I2C, CAN, and USB 2.0 full-speed, allowing flexible system integration across diverse industrial and consumer applications. The inclusion of a hardware-accelerated cryptographic engine provides secure data handling, supporting AES, SHA-256, and ECC algorithms for enhanced security in IoT and embedded systems. The ATSAME51N20A offers a rich set of timer modules, including three 32-bit timers and one 16-bit timer, along with a real-time counter (RTC) for precise timekeeping. It supports external clock sources and includes an internal oscillator for reduced component count. With its dual-bank flash architecture, the device enables seamless firmware updates without interrupting operation—a critical feature for remote or mission-critical deployments. Designed for industrial automation, medical devices, automotive control units, and smart metering, this microcontroller delivers reliable performance under harsh environmental conditions. Its compact QFN48 package and wide operating voltage range (1.62 V to 3.6 V) make it suitable for space-constrained and power-sensitive designs. The integrated debug interface supports on-chip debugging via SWD, streamlining development and reducing time-to-market. Microchip’s comprehensive ecosystem, including MPLAB X IDE, Atmel Start software configurator, and extensive documentation, ensures rapid prototyping and efficient development. This combination of performance, connectivity, and power efficiency positions the ATSAME51N20A as a versatile solution for modern embedded applications demanding both functionality and reliability.