A low-power, high-performance Microchip's ARM® Cortex®-M0+ based flash microcontroller, the ATSAMD21E17 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features: * 128KB of flash and 16KB of SRAM * 4K RWW support on MRL D version * Up to 48MHz operating frequency * Four serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C, three 16-bit timer/counters, 32-bit Real-Time Clock and calendar, 18 PWM channels, one 14-channel 12-bit ADC, one 10-bit DAC * Full Speed USB Device and embedded Host * Support for up to 60 touch channels * 1.62V to 3.63V power supply * Easy pin migration to SAMD21G and SAMD21J devices Supported by MPLAB X IDE and MPLAB Harmony. Functional Safety This device supports the ISO 26262 (ASIL B), IEC 61508 (SIL 2) and IEC 60730 (Class B) functional safety standards. · The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the 32-bit Microcontrollers Functional Safety web page. · To request any information about the SIL 2 STL, please fill out and submit the request form on Industrial Safety Self-Test Library web page. · Learn more about 32-bit MCUs with Functional Safety capabilities including device hardware and certified software libraries.