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Device: ATSAMR21G18A [QFN48]

Manufacturer: Atmel

Part number description for this device:

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AT Atmel  
SAMX Product Family SAMD = General purpose microcontrollerSAML = Low power GP microcontrollerSAMC = 5V microcontrollerSAMR = SoC microcontroller with RFSAMG = General purpose low-power high-performance MCU
XX Product Series 10 = Cortex M0+, DMA11 = Cortex M0+, DMA, USB20 = Cortex M0+, Basic Feature Set21 = Cortex M0+, Basic Feature Set, DMA, USB22 = Cortex M0+, Advanced Feature Set, DMA, USB, SLCD30 = Cortex M0 + CPU, Advanced Feature Set, DMA, USB55 = Cortex M4, FPUD51 = Cortex-M4F + Advanced Feature SetE51 = Cortex-M4F + Advanced Feature Set + 2x CANE53 = Cortex-M4F + Advanced Feature Set + EthernetE54 = Cortex-M4F + Advanced Feature Set + Ethernet + 2x CAN
X Pin Count E = 32 pinsG = 48 pinsJ = 64 pinsN = 100 pinsP = 120/128 pins
XX Flash Memory 14 = 16kB15 = 32kB16 = 64kB17 = 128kB18 = 256kB19 = 512kB20 = 1MB
X Device Variant A = Default variantB = Improved low powerL = Pinout optimized for analog a PWM
X Package Type A = TQFPM = QFNC = UBGAU = WLCSPCT = TFBGA
X Package Grade U = -40°C - 85°C Matte Sn PlattingH = -40°C - 85°C NiPdAu PlattingN = -40°C - 105°C Matte Sn PlattingF = -40°C - 125°C Matte Sn Platting
X Package Carrier Blank = Tray (Default)T = Tape&Reel

Note: Part number description table describes usual part-numbering system for more chips, therefore this table can contain information, that might not be valid for the actually selected chip. The information here are provided on the best-effort basis and might be either inaccurate or incoplete. Therefore always check the latest datasheet of the chip for part number description detail. If you find some inaccuracy, let us please know.

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Supported by programmers and programming adapters/modules:

BeeHive204 adapter/module: DIL48/QFN48 ZIF ARM-2 (70-3013)
BeeHive208S adapter/module: DIL48/QFN48 ZIF ARM-2 (70-3013)
BeeHive304 adapter/module: AP3 QFN48-1.02 ARM-2 (73-4984)
BeeProg2 adapter/module: DIL48/QFN48 ZIF ARM-2 (70-3013)
BeeProg2C adapter/module: DIL48/QFN48 ZIF ARM-2 (70-3013)
BeeProg3 adapter/module: AP3 QFN48-1.02 ARM-2 (73-4984)
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