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| Part Number | ATSAMD21J18A-AU | ATSAMD21J18A-CU | ATSAMD21J18A-AUT | ATSAMD21J18A-MU | ATSAMD51J18A-AU | ATSAMD21E18A-AU | ATSAMD21G18A-AU | ATSAMD21J17A-AU | ATSAMD21J18A-AF |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Core Processor | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M4F | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 48MHz | 48MHz | 48MHz | 48MHz | 120MHz | 48MHz | 48MHz | 48MHz | 48MHz |
| Connectivity | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB | I²C, LINbus, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 52 | 52 | 52 | 52 | 51 | 26 | 38 | 52 | 52 |
| Program Memory Size | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 256KB (256K x 8) | 128KB (128K x 8) | 256KB (256K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - | - | - | - |
| RAM Size | 32K x 8 | 32K x 8 | 32K x 8 | 32K x 8 | 128K x 8 | 32K x 8 | 32K x 8 | 16K x 8 | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.71V ~ 3.63V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V |
| Data Converters | A/D 20x12b; D/A 1x10b | A/D 20x12b; D/A 1x10b | A/D 20x12b; D/A 1x10b | A/D 20x12b; D/A 1x10b | A/D 24x12b; D/A 2x12b | A/D 10x12b; D/A 1x10b | A/D 14x12b; D/A 1x10b | A/D 20x12b; D/A 1x10b | A/D 20x12b; D/A 1x10b |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 64-TQFP | 64-UFBGA | 64-TQFP | 64-VFQFN Exposed Pad | 64-TQFP | 32-TQFP | 48-TQFP | 64-TQFP | 64-TQFP |
| Supplier Device Package | 64-TQFP (10x10) | 64-UFBGA (5x5) | 64-TQFP (10x10) | 64-QFN (9x9) | 64-TQFP (10x10) | 32-TQFP (7x7) | 48-TQFP (7x7) | 64-TQFP (10x10) | 64-TQFP (10x10) |
