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SAM-R21E 数据表(PDF) 6 Page - ATMEL Corporation |
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SAM-R21E 数据表(HTML) 6 Page - ATMEL Corporation |
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6 / 22 page  6 Atmel | SMART SAM R21 [PRELIMINARY DATASHEET SUMMARY] Atmel-42223AS–SAM-R21_Summary–07/2014 2. Ordering Information 2.1 SAM R21E ATSAMR 21 E 16 A - M U T Product Family SAMR = SoC Microcontroller with RF Product Series 21 = Cortex M0+ CPU, USB Flash Memory 18 = 256KB 17 = 128KB 16 = 64KB Device Variant A = Default Variant Pin Count E = 32 Pins G = 48 Pins Package Carrier No character = Tray (Default) T = Tape and Reel Package Grade Package Type M = QFN U = -40 - 85°C Matte Sn Plating F= -40 -125°C Matte Sn Plating Ordering Code FLASH (bytes) SRAM (bytes) Package Carrier Type ATSAMR21E16A-MF 64K 8K QFN32 Tray ATSAMR21E16A-MFT Tape & Reel ATSAMR21E16A-MU Tray ATSAMR21E16A-MUT Tape & Reel ATSAMR21E17A-MF 128K 16K QFN32 Tray ATSAMR21E17A-MFT Tape & Reel ATSAMR21E17A-MU Tray ATSAMR21E17A-MUT Tape & Reel ATSAMR21E18A-MF 256K 32K QFN32 Tray ATSAMR21E18A-MFT Tape & Reel ATSAMR21E18A-MU Tray ATSAMR21E18A-MUT Tape & Reel |
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