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| PartNumber | ATSAM3U-EK | ATSAM3U1CA-AU | ATSAM3U1C-AU |
| Description | Development Boards & Kits - ARM EVAL KIT SAM3U | ARM Microcontrollers - MCU 64K Flash, 20K SRAM 32-bit ARM Cortex M3 | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | Development Boards & Kits - ARM | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Series | SAM3U | SAM3U | - |
| Product | Development Kits | MCU | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Tool Is For Evaluation Of | SAM3U | - | - |
| Packaging | Bulk | Tray | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Interface Type | RS-232, USB | 3xUSART, 4xSPI, Bus, TWI | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Operating Supply Voltage | 3 V | 1.8 V | - |
| Product Type | Development Boards & Kits - ARM | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 1 | 270 | - |
| Subcategory | Development Tools | Microcontrollers - MCU | - |
| Unit Weight | 2.205 lbs | 0.046530 oz | - |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | LQFP-100 | - |
| Maximum Clock Frequency | - | 96 MHz | - |
| Program Memory Size | - | 64 kB | - |
| Data RAM Size | - | 20 kB | - |
| Number of I/Os | - | 57 I/O | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Height | - | 1.4 mm | - |
| Length | - | 14 mm | - |
| Program Memory Type | - | Flash | - |
| Width | - | 14 mm | - |
| I/O Voltage | - | 3.3 V | - |
| Moisture Sensitive | - | Yes | - |
| Number of Timers/Counters | - | 8 Timer | - |
| Processor Series | - | ATSAM3x | - |
| Supply Voltage Max | - | 1.95 V | - |
| Supply Voltage Min | - | 1.62 V | - |
| Tradename | - | Cortex-M3, Cortex | - |