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| PartNumber | C8051F304-GM | C8051F304-GMR | C8051F304 |
| Description | 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB 8-bit MCU | 8-bit Microcontrollers - MCU 4kB/256B RAM, QFN11 OTP available (T603-GM) | IC MCU 8BIT 4KB FLASH 11QFN |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-11 | QFN-11 | - |
| Series | C8051F304 | C8051F304 | - |
| Core | 8051 | 8051 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 25 MHz | 25 MHz | - |
| Program Memory Size | 4 kB | 4 kB | - |
| Data RAM Size | 256 B | 256 B | - |
| ADC Resolution | 8 bit | No ADC | - |
| Number of I/Os | 8 I/O | 8 I/O | - |
| Operating Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | Reel | - |
| Height | 0.88 mm | 0.88 mm | - |
| Length | 3 mm | 3 mm | - |
| Program Memory Type | Flash | Flash | - |
| Width | 3 mm | 3 mm | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Data RAM Type | RAM | - | - |
| Interface Type | I2C, SMBus, UART | I2C, SMBus, UART | - |
| Number of ADC Channels | 8 | - | - |
| Number of Timers/Counters | 3 Timer | 3 Timer | - |
| Processor Series | C8051 | C8051 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 122 | 1500 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Unit Weight | 0.000850 oz | 0.000850 oz | - |
| Product | - | MCU | - |
| Moisture Sensitive | - | Yes | - |