Характеристики
| MHz | 25 |
| Flash (kb) | 64 kB |
| RAM (kb) | 4.25 |
| Digital Port I/O | 64 |
| Communications | CAN, 2 x UART, I2C, SPI, EMIF |
| Timers (16-bit) | 5 |
| PCA Channels | 6 |
| Debug Interface | JTAG |
| Package | 100-pin, 16x16, TQFP |
| Dev Kit | C8051F040DK |
| VREF | true |
| Automotive | false |
| Cap Sense | false |
| Comparators | 3 |
C8051F040DKSilicon LabsDSPs - Digital Signal Processors