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| Part Number | ATSAMD20E18A-MU | 
| Datasheet | ATSAMD20E18A-MU datasheet | 
| Description | IC MCU 32BIT 256KB FLASH 32VQFN | 
| Manufacturer | Microchip Technology | 
| Series | SAM D20E | 
| Part Status | Active | 
| Core Processor | ARM® Cortex®-M0+ | 
| Core Size | 32-Bit | 
| Speed | 48MHz | 
| Connectivity | I²C, SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, WDT | 
| Number of I/O | 26 | 
| Program Memory Size | 256KB (256K x 8) | 
| Program Memory Type | FLASH | 
| EEPROM Size | - | 
| RAM Size | 32K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V | 
| Data Converters | A/D 10x12b; D/A 1x10b | 
| Oscillator Type | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | 
| Package / Case | Surface Mount | 
| Supplier Device Package | 32-VFQFN Exposed Pad | 
| Base Part Number | 32-VQFN (5x5) |