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doc:stellaris:compare
Compare
| Arduino Uno / Leonardo | Arduino Mega | Stellaris Launchpad | |
|---|---|---|---|
| MCU | ATmega328 / ATmega32u4 | ATmega1280/ATmega2560 | LM4F120H5QR |
| arch | 8-bit AVR | 8-bit AVR | 32-bit ARM Cortex M4F |
| clock | 16 MHz | 16 MHz | 80 MHz |
| logic | 5 V | 5 V | 3.3 V |
| GPIO | 14/20 | 54 | 35 |
| PWM | 6/7 (8-bit) | 14 (8-bit) | 12 (16-bit) + 12 (32-bit) |
| ADC | 6 (10-bit) | 16 (10-bit) | 12 (12-bit) |
| Flash | 32 KB | 128/256 KB | 256 KB |
| SRAM | 2/2.5 KB | 8 KB | 32 KB |
| UART | 1x | 4x | 8x |
| SSI/SPI | 1x | 1x | 4x |
| I2C | - | - | 4x |
| CAN | - | - | 1x |
| USB | UART only/UART+HID | UART only | full client/full host |
| extra | 2x Analog Comparator |