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| PartNumber | ATSAMD21E15B-AFT | ATSAMD21E15B-AF | ATSAMD21E15B-AU |
| Description | ARM Microcontrollers - MCU 32TQFP,125C TEMP, GREEN, 3.3V, 48MHZ,T&R | ARM Microcontrollers - MCU 32TQFP,125C TEMP, GREEN, 3.3V, 48MHZ | ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 3.3V, 48MHZ |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TQFP-32 | TQFP-32 | TQFP-32 |
| Series | SAMD21 | SAMD21 | SAMD21 |
| Core | ARM Cortex M0+ | ARM Cortex M0+ | ARM Cortex M0+ |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz |
| Program Memory Size | 32 kB | 32 kB | 32 kB |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 26 I/O | 26 I/O | 26 I/O |
| Operating Supply Voltage | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 85 C |
| Packaging | Reel | Tray | Tray |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Interface Type | LIN, I2C, I2S, SPI, USART | LIN, I2C, I2S, SPI, USART | LIN, I2C, I2S, SPI, USART |
| DAC Resolution | 10 bit | 10 bit | 10 bit |
| Moisture Sensitive | Yes | - | Yes |
| Number of ADC Channels | 10 Channel | 10 Channel | 10 Channel |
| Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
| Processor Series | SAMD21E | SAMD21E | SAMD21E |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 2000 | 250 | 250 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.63 V | 3.63 V | 3.63 V |
| Supply Voltage Min | 1.62 V | 1.62 V | 1.62 V |
| Watchdog Timers | Watchdog Timer, Windowed | Watchdog Timer, Windowed | Watchdog Timer, Windowed |
