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| Part Number | C8051F302 | C8051F302R | C8051F303 | C8051F304 | C8051F305 | C8051F312 | C8051F300 | C8051F301 | 
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | 
| Core Processor | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 
| Speed | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 
| Connectivity | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), UART/USART | 
| Peripherals | POR, PWM, Temp Sensor, WDT | POR, PWM, Temp Sensor, WDT | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, Temp Sensor, WDT | POR, PWM, Temp Sensor, WDT | POR, PWM, WDT | 
| Number of I/O | 8 | 8 | 8 | 8 | 8 | 29 | 8 | 8 | 
| Program Memory Size | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 4KB (4K x 8) | 2KB (2K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 8KB (8K x 8) | 
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash | 
| EEPROM Size | - | - | - | - | - | - | - | - | 
| RAM Size | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 | 1.25K x 8 | 256 x 8 | 256 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 
| Data Converters | A/D 8x8b | A/D 8x8b | - | - | - | A/D 21x10b | A/D 8x8b | - | 
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 32-LQFP | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 
| Supplier Device Package | 11-QFN (3x3) | 11-QFN (3x3) | 11-QFN (3x3) | 11-QFN (3x3) | 11-QFN (3x3) | 32-LQFP (7x7) | 11-QFN (3x3) | 11-QFN (3x3) |