| PartNumber | C8051F349-GQ | C8051F349-GM | C8051F349-GMR |
| Description | 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU | 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU | 8-bit Microcontrollers - MCU Next gen available (F387-GM) 25 MIPS,32KB,USB,32Pin |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LQFP-32 | QFN-32 | QFN-32 |
| Series | C8051F349 | C8051F349 | C8051F349 |
| Core | 8051 | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 25 MHz | 25 MHz | - |
| Program Memory Size | 32 kB | 32 kB | - |
| Data RAM Size | 2.25 kB | 2.25 kB | - |
| ADC Resolution | No ADC | No ADC | - |
| Number of I/Os | 25 I/O | 25 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tube | Reel |
| Height | 1.4 mm | 0.83 mm | - |
| Length | 7 mm | 5 mm | - |
| Program Memory Type | Flash | Flash | - |
| Width | 7 mm | 5 mm | - |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Interface Type | I2C, SMBus, SPI, UART, USB | I2C, SPI, UART | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 4 Timer | 4 Timer | - |
| Processor Series | C8051 | C8051 | C8051 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 250 | 73 | 1500 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.25 V | 5.25 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Unit Weight | 0.005742 oz | 0.001764 oz | 0.002449 oz |