The ATSAML21E15B-AUT is a smart ARM based 32bit microcontroller 32 pin TQFP package. This SMART SAML21 series of ultra low power microcontroller using 32bit ARM Cortex -M0+ processor, operate at maximum of 48MHz and reach 2.46 CoreMark/MHz. It has flash memory up to 32KB and 4KB of SRAM. It is designed for simple, intuitive migration with identical peripheral modules, hex compatible code, identical linear address map and pin compatible migration paths between all devices. It includes intelligent and flexible peripherals, Atmel event system for inter peripheral signalling and support for capacitive touch button, slider and wheel user interfaces. It has an in-system programmable flash, 16-channel direct memory access (DMA) controller, 12-channel event system, programmable interrupt controller, up to 25 programmable I/O pins, power-on reset (POR) and brown-out detection (BOD), internal and external clock options, external interrupt controller (EIC), 32bit real time clock and calendar.
● Operating voltage range from 1.62V to 3.63V
● Operating temperature range from -40°C to 85°C
● Full speed USB device and embedded host, 4 configurable custom logic (CCL) (LUTs)
● 4 serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C
● SW debug interface, watchdog timer (WDT) and 16 external interrupt lines
● AES and true random number generator
● Support for up to 60 touch channels
● Easy pin migration from SAMD21 and SAMD20 devices
● Supported by Atmel studio, Atmel software framework and SAM L21 Xplained pro kit
● 3 timer counter (TC), 3 timer counter for control (TCC) & 2 waveform output channels per TC
