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| PartNumber | ATSAML21J18B-ANT | ATSAML21J18A-AUT | ATSAML21J18A-MUT |
| Description | ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz | ARM Microcontrollers - MCU SamL Cortex MO+ 1.6-3.6V,48MHz | MCU 32-bit SAM L ARM Cortex M0+ RISC 256KB Flash 1.8V/2.5V/3.3V 64-Pin QFN EP T/R |
| Manufacturer | Microchip | Microchip | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Series | SAML21 | SAML21 | - |
| Core | ARM Cortex M0+ | ARM Cortex M0+ | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 48 MHz | 48 MHz | - |
| Program Memory Size | 256 kB | 256 kB | - |
| Data RAM Size | 32 kB | 32 kB | - |
| ADC Resolution | 12 bit | 12 bit | - |
| Number of I/Os | 51 I/O | 51 I/O | - |
| Operating Supply Voltage | 1.62 V to 3.63 V | 1.62 V to 3.63 V | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Reel | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Data RAM Type | SRAM | SRAM | - |
| Interface Type | I2C, LIN, SPI, USART, USB | I2C, SPI, UART, USART | - |
| Analog Supply Voltage | 3.3 V | - | - |
| DAC Resolution | 2 x 12 bit | - | - |
| I/O Voltage | 3.3 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 20 Channel | 20 Channel | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 1500 | 1500 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 3.63 V | 3.63 V | - |
| Supply Voltage Min | 1.62 V | 1.62 V | - |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Number of Timers/Counters | - | 5 Timer | - |
| Processor Series | - | SAML21J | - |
| Unit Weight | - | 0.012720 oz | - |