Manufacturer: Silicon Laboratories Inc  •  Series: C8051F12x  •  Core Processor: 8051  •  Core Size: 8-Bit  •  Speed: 50MHz  •  Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART  •  Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT  •  Number of I /O: 64  •  Program Memory Size: 128KB (128K x 8)  •  Program Memory Type: FLASH  •  RAM Size: 8.25K x 8  •  Voltage - Supply (Vcc/Vdd): 2.7 V ~ 3.6 V  •  Data Converters: A/D 8x8b, 8x12b; D/A 2x12b  •  Oscillator Type: Internal  •  Operating Temperature: -40°C ~ 85°C  •  Package / Case: 100-TQFP