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SAM-R21G Datasheet(PDF) 4 Page - ATMEL Corporation |
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SAM-R21G Datasheet(HTML) 4 Page - ATMEL Corporation |
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4 / 22 page  4 Atmel | SMART SAM R21 [PRELIMINARY DATASHEET SUMMARY] Atmel-42223AS–SAM-R21_Summary–07/2014 1. Configuration Summary SAM R21G SAM R21E Pins 48 32 General Purpose I/O-pins (GPIOs) 28 16 Flash 256/128/64KB 256/128/64KB SRAM 32/16/8KB 32/16/8KB Timer Counter (TC) instances 3 3 Waveform output channels per TC instance 2 2 Timer Counter for Control (TCC) instances 3 3 Waveform output channels per TCC 4/4/2 4/4/2 DMA channels 12 12 USB interface 1 1 Serial Communication Interface (SERCOM) instances 5+1(1) 4+1(1) Inter-IC Sound (I2S) interface No No Analog-to-Digital Converter (ADC) channels 8 4 Analog Comparators (AC) 2 2 Digital-to-Analog Converter (DAC) channels No No Real-Time Counter (RTC) Yes Yes RTC alarms 1 1 RTC compare values 1 32-bit value or 2 16-bit values 1 32-bit value or 2 16-bit values External Interrupt lines 15 14 Peripheral Touch Controller (PTC) X and Y lines 8x6 6x2 Maximum CPU frequency 48MHz Packages QFN QFN 32.768kHz crystal oscillator (XOSC32K) Yes No Oscillators 16MHz crystal oscillator for 2.4GHz TRX (XOSCRF) 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) Event System channels 12 12 SW Debug Interface Yes Yes Watchdog Timer (WDT) Yes Yes |
Similar Part No. - SAM-R21G_14 |
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Similar Description - SAM-R21G_14 |
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