The Silicon Labs C8051F390-A-GMR is an 8-bit core processor with a speed of 50MHz. It features SMBus (2-Wire/I2C), SPI, UART/USART connectivity and peripherals such as POR, PWM, Temp Sensor, and WDT. The device has 21 I/O and a program memory size of 16KB (16K x 8) with FLASH program memory type. The Silicon Labs device has 21 I/O and a program memory size of 16KB (16K x 8) with FLASH program memory type.

• Connectivity: SMBus (2-Wire/I2C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• I/O: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• RAM Size: 1K x 8
• Data Converters: A/D 20x10b, D/A 2x10b
• Oscillator Type: Internal
• Package: 24-QFN (4x4)
• Operating Temperature Range: -40°C to 105°C
• Manufacturer Package: 24-WFQFN Exposed Pad
• Manufacturer Pack Quantity: 1,500
• MSL Level: 1 (unlimited)
• Part Number Series: C8051F39
• Supply Voltage Range: 1.8V to 3.6V