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Atmel SAM D20 [DATASHEET Summary]

42129JS–SAM–12/2013

Features

Processor

ARM Cortex-M0+ CPU running at up to 48MHz

Single-cycle hardware multiplier

Memories

16/32/64/128/256KB in-system self-programmable flash

2/4/8/16/32KB SRAM

System

Power-on reset (POR) and brown-out detection (BOD)

Internal and external clock options with 48MHz 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 standby sleep modes

SleepWalking peripherals

Peripherals

8-channel Event System

Up to eight 16-bit Timer/Counters (TC), configurable as either:

One 16-bit TC with compare/capture channels

One 8-bit TC with compare/capture channels

One 32-bit TC with 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

I

SPI

One 12-bit, 350ksps Analog-to-Digital Converter (ADC) with up to 20 channels

Differential and single-ended channels

1/2x to 16x gain stage

Automatic offset and gain error compensation

Oversampling and decimation in hardware to support 13-, 14-, 15- or 16-bit resolution

10-bit, 350ksps Digital-to-Analog Converter (DAC)

Two Analog Comparators 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

48-pin TQFP, QFN

32-pin TQFP, QFN

Operating Voltage

1.62V – 3.63V

Power Consumption

Down to 70µA/MHz in active mode

Down to 8µA running the Peripheral Touch Controller