Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Data Sheet
Product codes
ATSAMD20-XPRO
3
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
1.
Configuration Summary
SAM D20J
SAM D20G
SAM D20E
Number of pins
64
48
32
General Purpose I/O-pins (GPIOs)
52
38
26
Flash
256/128/64/32/16KB
256/128/64/32/16KB
256/128/64/32/16KB
SRAM
32/16/8/4/2KB
32/16/8/4/2KB
32/16/8/4/2KB
Maximum CPU frequency
48MHz
Event System channels
8
8
8
Timer Counter (TC)
8
6
6
Waveform output channels for TC
2
2
2
Serial Communication Interface
(SERCOM)
(SERCOM)
6
6
4
Analog-to-Digital Converter (ADC)
channels
channels
20
14
10
Analog comparators
2
2
2
Digital-to-Analog Converter (DAC)
channels
channels
1
1
1
Real-Time Counter (RTC)
Yes
Yes
Yes
RTC alarms
1
1
1
RTC compare values
1 32-bit value or
2 16-bit values
1 32-bit value or
2 16-bit values
1 32-bit value or
2 16-bit values
External Interrupt lines
16
16
16
Peripheral Touch Controller (PTC) X
and Y lines
and Y lines
16x16
12x10
10x6
Packages
QFN
TQFP
QFN
TQFP
QFN
TQFP
Oscillators
32.768kHz crystal oscillator (XOSC32K)
0.4-32MHz crystal oscillator (XOSC)
32.768kHzinternal oscillator (OSC32K)
32kHz ultra-low-power internal oscillator (OSCULP32K)
8MHz high-accuracy internal oscillator (OSC8M)
48MHz Digital Frequency Locked Loop (DFLL48M)
SW Debug Interface
Yes
Yes
Yes
Watchdog Timer (WDT)
Yes
Yes
Yes