The ATSAMD21G18A-UUT is a SMART SAMD21 series 32-bit Low-power Microcontroller based on the high-performance ARM Cortex-M0+ RISC processor. It operates at a maximum speed of 48MHz and features 256kB of flash memory and 32kB of SRAM. Peripherals include six serial communication modules (SERCOM) configurable as UART/USART, three 16-bit timers/counters, 32-bit real-time clock and calendar, 20 PWM channels, one 14-channel 12-bit ADC, one 10-bit DAC, full speed USB device and embedded host and support for up to 120 touch channels. The device operates from 1.62 to 3.63V.
● ARM Cortex-M0+ CPU running at up to 48MHz
● Single-cycle hardware multiplier
● Micro trace buffer (MTB)
● Power-on reset (POR) and brown-out detection (BOD)
● External interrupt controller (EIC)
● 16 External interrupts
● One non-maskable interrupt
● Two-pin serial wire debug (SWD) programming, test and debugging interface
● Idle and standby sleep modes
● SleepWalking peripherals
● 12-channel Direct memory access controller (DMAC)
● 12-channel Event system
● 32-bit Real-time counter (RTC) with clock/calendar function
● Watchdog timer (WDT)
● CRC-32 generator
● One full-speed (12Mbps) Universal serial bus (USB) 2.0 interface
● Peripheral touch controller (PTC)
● Easy pin migration to SAMD21G and SAMD21J devices
