Features
Operating Conditions
• 1.62V – 3.63V, -40°C to +85°C, DC up to 48 MHz
• 1.62V – 3.63V, -40°C to +105°C, DC up to 32 MHz
• 2.7V – 3.63V, -40°C to +125°C Extended Temperature with compliance to AEC-Q100, DC up to 32MHz

Core
• Arm® Cortex®-M0+ CPU running at up to 48 MHz
– Single-cycle hardware multiplier

Memories
• 16/32/64/128/256 KB in-system self-programmable Flash
• 2/4/8/16/32 KB SRAM

System
• Power-on Reset (POR) and Brown-out Detection (BOD)
• Internal and external clock options with 48 MHz Digital Frequency Locked Loop (DFLL48M)
• External Interrupt Controller (EIC)
• Up to 16 external interrupts
• One non-maskable interrupt
• Two-pin Serial Wire Debug (SWD) programming, test and debugging interface

Low-Power
• Idle and Stand-by Sleep modes
• SleepWalking peripherals

Peripherals
• 8-channel Event System
• Up to eight 16-bit Timer/Counters (TC), configurable as:
– One 16-bit TC with two compare/capture channels
– One 8-bit TC with two compare/capture channels
– One 32-bit TC with two compare/capture channels, by using two TCs
• 32-bit Real Time Counter (RTC) with clock/calendar function
• Watchdog Timer (WDT)
• CRC-32 generator
• Up to six Serial Communication Interfaces (SERCOM), each configurable to operate as either:
– USART with full-duplex and single-wire half-duplex configuration
– Inter-Integrated Circuit (I2C) up to 400 kHz
– Serial Peripheral Interface (SPI)
• One 12-bit, 350 ksps Analog-to-Digital Converter (ADC) with up to 20 channels
– Differential and single-ended input
– 1/2x to 16x programmable gain stage
– Automatic offset and gain error compensation
– Oversampling and decimation in hardware to support 13-bit, 14-bit, 15-bit, or 16-bit resolution
• 10-bit, 350 ksps Digital-to-Analog Converter (DAC)
• Two Analog Comparators (AC) with Window Compare function
• Peripheral Touch Controller (PTC)
– Up to 256-channel capacitive touch and proximity sensing

I/O
• Up to 52 programmable I/O pins

Packages
• 64-pin TQFP, VQFN
• 64-ball UFBGA (not available in grades Extended Temperature and AEC-QA100)
• 48-pin TQFP, VQFN
• 45-ball WLCSP (not available in grades Extended Temperature and AEC-QA100)
• 32-pin TQFP, VQFN
• 27-ball WLCSP (not available in grades Extended Temperature and AEC-QA100)

Power Consumption
• Power Consumption
– Down to 50 μA/MHz in Active mode
– Down to 8 μA running the PTC