1# SAMC21J18A BSP Introduction 2 3[中文](README_zh.md) 4 5- MCU: ATSAMC21J18A @64MHz, 256KB FLASH, 32KB RAM, 2.7V – 5.5V 6- C21: Cortex-M0+ + Advanced Feature Set + 2x CAN-FD + Delta-Sigma ADC 7- Pin: N=100 pins, J=64 pins, G=48 pins, E=32 pins 8- Flash: 18=256KB, 17=128KB, 16=64KB , 15=32KB(size=2^n) 9- SRAM : 32KB(Flash 256KB), 16KB(Flash 128KB), 8KB(Flash 64KB), 4KB(Flash 32KB) 10## Datasheet: <https://www.microchip.com/en-us/product/ATSAMC21J18A> 11 12#### KEY FEATURES 13 14#### Core 15 - 32-bit Arm® Cortex®-M0+ CPU running at up to 48 MHz or 64 MHz with Single-cycle hardware multiplier 16 17#### Memories 18 - 32/64/128/256 KB in-system self-programmable Flash 19 - 1/2/4/8 KB independent self-programmable Flash for EEPROM emulation 20 - 4/8/16/32 KB SRAM main memory 21 22#### System 23 - Power-on Reset (POR) and Brown-out Detection (BOD) 24 - Internal and external clock options with 48 MHz to 96 MHz Fractional Digital Phase Locked Loop (FDPLL96M) 25 - External Interrupt Controller (EIC) (Interrupt pin debouncing is only available in SAM C20/C21 N) 26 - 16 external interrupts 27 - One non-maskable interrupt 28 - Two-pin Serial Wire Debug (SWD) programming, test, and debugging interface 29 30#### High-Performance Peripherals 31 - Hardware Divide and Square Root Accelerator (DIVAS) 32 - 12-channel Direct Memory Access Controller (DMAC) 33 - 12-channel Event System 34 - Up to eight 16-bit Timer/Counters (TC), configurable as either 35 - Two 24-bit and one 16-bit Timer/Counter for Control (TCC), with extended functions 36 - Frequency Meter (The division reference clock is only available in the SAM C21N) 37 - 32-bit Real Time Counter (RTC) with clock/calendar function 38 - Watchdog Timer (WDT) 39 - CRC-32 generator 40 - Up to two Controller Area Network (CAN) interfaces in the SAM C21 41 - Up to eight Serial Communication Interfaces (SERCOM), each configurable to operate as USART/I2C/SPI 42 - One Configurable Custom Logic (CCL) 43 - Up to Two 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to 12 channels each (20 unique channels) 44 - One 16-bit Sigma-Delta Analog-to-Digital Converter (SDADC) with up to 3 differential channels in the SAM C21 45 - 10-bit, 350 ksps Digital-to-Analog Converter (DAC) in the SAM C21 46 - Up to four Analog Comparators (AC) with Window Compare function 47 - Integrated Temperature Sensor in the SAM C21 48 - Peripheral Touch Controller (PTC) 49 - 256-Channel capacitive touch 50 51#### I/O 52 - Up to 84 programmable I/O pins 53 54#### Qualification 55 - AEC - Q100 Grade 1 (-40°C to 125°C) 56 57#### Voltage 58 - 2.7V – 5.5V 59 - -40°C to +125°C, DC to 48 MHz 60 - -40°C to +85°C, DC to 64 MHz 61 62#### Packages 63 - 100-pin TQFP 64 - 64-pin TQFP, VQFN 65 - 56-pin WLCSP 66 - 48-pin TQFP, VQFN 67 - 32-pin TQFP, VQFN 68 69#### Board info 70- [SAM C21 XPLAINED PRO]（https://www.microchip.com/en-us/development-tool/ATSAMC21-XPRO） 71