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| PartNumber | ATSAML21E15B-ANT | ATSAML21-XPRO-B | ATSAML21-XPRO |
| Description | ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz | Development Boards & Kits - ARM SAML21 Xplained Eval Kit | SAM L21 XPLAINED PRO ATSAML21 |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | ARM Microcontrollers - MCU | Development Boards & Kits - ARM | Evaluation Boards - Embedded - MCU, DSP |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TQFP-32 | - | - |
| Series | SAML21 | SAML21 | SAM L |
| Core | ARM Cortex M0+ | ARM Cortex M0+ | ARM Cortex M0+ |
| Data Bus Width | 32 bit | - | 32 bit |
| Maximum Clock Frequency | 48 MHz | - | - |
| Program Memory Size | 32 kB | - | - |
| Data RAM Size | 4 kB | - | - |
| ADC Resolution | 12 bit | - | - |
| Number of I/Os | 25 I/O | - | - |
| Operating Supply Voltage | 1.62 V to 3.63 V | 5 V | 5 V |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | - | Bulk |
| Product | MCU | Evaluation Kits | Evaluation Kits |
| Program Memory Type | Flash | - | - |
| Brand | Microchip Technology | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | - | - |
| Interface Type | I2C, LIN, SPI, USART, USB | I2C, SPI | GPIO I2C SPI USB |
| Analog Supply Voltage | 3.3 V | - | - |
| DAC Resolution | 2 x 12 bit | - | - |
| I/O Voltage | 3.3 V | - | - |
| Number of ADC Channels | 10 Channel | - | - |
| Product Type | ARM Microcontrollers - MCU | Development Boards & Kits - ARM | - |
| Factory Pack Quantity | 2000 | 1 | - |
| Subcategory | Microcontrollers - MCU | Development Tools | - |
| Supply Voltage Max | 3.63 V | - | - |
| Supply Voltage Min | 1.62 V | - | - |
| Watchdog Timers | Watchdog Timer | - | - |
| Tool Is For Evaluation Of | - | ATSAML21J18B | ATSAML21J18A |
| Description/Function | - | Evaluation kit for the ATSAML21J18B microcontroller | - |
| For Use With Related Products | - | - | ATSAML21 |
| Type | - | - | MCU 32-Bit |
| For Use With | - | - | ATSAML21J18A |
| Mounting Type | - | - | Fixed |
| Core Processor | - | - | ARMR CortexR-M0+ |
| Contents | - | - | Board(s) |
| Board Type | - | - | Evaluation Platform |
| Operating System | - | - | - |
| Platform | - | - | SAM L21 Xplained Pro |
| Description Function | - | - | A hardware platform to evaluate the ATSAML21J18A microcontroller |