Features
SAMD21G18A
Processor
Arm® Cortex®-M0+ at up to 48 MHz
256 kB Flash
32 kB SRAM
Power On Reset (POR) and Brown Out Detection (BOD)
Peripherals
12 channel DMA
12 channel event system
5x 16 bit Timer/Counter
3x 24 bit timer/counter with extended functions
32 bit RTC
Watchdog Timer
CRC-32 generator
Full speed Host/Device USB with 8 end points
6x SERCOM (USART,
I
2C, SP
I
, L
I
N)
Two channel
I
2S
12 bit 350ksps ADC (up to 16 bit with oversampling)
10 bit 350ksps DAC
External
I
nterrupt Controller (up to 16 lines)
ATECC508 Crypto Chip
Cryptographic co-processor with secure hardware based key storage
Protected storage for up to 16 keys, certi
fi
cates or data
ECDH: F
I
PS SP800-56A Elliptic Curve Di
ffi
e-Hellman
ECDSA: F
I
PS186-3 Elliptic Curve Digital Signature Algorithm
N
I
ST standard P256 elliptic curve support
SHA-256 & HMAC hash including o
ff
-chip context save/restore
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