Характеристики
| MHz | 25 |
| Flash (kb) | 16 kB |
| RAM (kb) | 2.25 |
| Digital Port I/O | 21 |
| Communications | USB, UART, I2C, SPI |
| Timers (16-bit) | 4 |
| PCA Channels | 5 |
| Debug Interface | C2 |
| Package | 28-pin, 5x5, QFN |
| Dev Kit | C8051F320DK |
| VREF | true |
| Automotive | false |
| Cap Sense | false |
| Comparators | 2 |
C8051F321-GMSilicon LabsMicrocontrollers