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AT
Atmel
XXXX
Product Family
SAMR = SoC microcontroller with RF
XX
Product Series
34 = Cortex M0+ CPU + DMA + USB + LoRa transeiver35 = Cortex M0+ CPU + DMA + LoRa transeiver
X
Pin Count
J = 64 pins
XX
Flash Memory Density
16 = 64kB17 = 128kB18 = 256kB
X
Device Variant
B = Release to production
X
Package Carrier
T = Tape and Reel
X
Temperature Range
I = -40°C to 85°C
/
XXX
Package Type
7JX = 64 ball 6x6mm TFBGA
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.