SAM D20 Family Low-Power, 32-bit Cortex-M0+ MCUs with 12-bit ADC, 10- bit DAC, 256-Channel PTC, RTC, and SERCOM Features Operating Conditions 1.62V 3.63V, -40C to +85C, DC up to 48 MHz 1.62V 3.63V, -40C to +105C, DC up to 32 MHz 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) 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 2 Inter-Integrated Circuit (I C) 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 Complete Datasheet DS60001504C-page 1 2019 Microchip Technology Inc. SAM D20 Family Oversampling and decimation in hardware to support 13-, 14-, 15- 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) 256-Channel capacitive touch and proximity sensing I/O Up to 52 programmable I/O pins Packages 64-pin TQFP, QFN 64-ball UFBGA 48-pin TQFP, QFN 45-ball WLCSP 32-pin TQFP, QFN Power Consumption Power Consumption Down to 50 A/MHz in Active mode Down to 8 A running the PTC DS60001504C-page 2 Complete Datasheet 2019 Microchip Technology Inc.