Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
3
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
1.
Configuration Summary
SAM D21J
SAM D21G
SAM D21E
Pins
64
48
32
General Purpose I/O-pins (GPIOs)
52
38
26
Flash
256/128/64/32KB
256/128/64/32KB
256/128/64/32KB
SRAM
32/16/8/4KB
32/16/8/4KB
32/16/8/4KB
Timer Counter (TC) instances
5
3
3
Waveform output channels per TC
instance
instance
2
2
2
Timer Counter for Control (TCC)
instances
instances
3
3
3
Waveform output channels per TCC
8/4/2
8/4/2
6/4/2
DMA channels
12
12
12
USB interface
1
1
1
Serial Communication Interface
(SERCOM) instances
(SERCOM) instances
6
6
4
Inter-IC Sound (I
2
S) interface
1
1
1
Analog-to-Digital Converter (ADC)
channels
channels
20
14
10
Analog Comparators (AC)
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
Maximum CPU frequency
48MHz
Packages
QFN
TQFP
QFN
TQFP
QFN
TQFP
Oscillators
32.768kHz crystal oscillator (XOSC32K)
0.4-32MHz crystal oscillator (XOSC)
32.768kHz internal oscillator (OSC32K)
32kHz ultra-low-power internal oscillator (OSCULP32K)
8MHz high-accuracy internal oscillator (OSC8M)
48MHz Digital Frequency Locked Loop (DFLL48M)
96MHz Fractional Digital Phased Locked Loop (FDPLL96M)