Silicon Labs C8051F331R Microcontrollers

RAM: 768x8

Core: 8051

Speed: 25MHz

I/O port: 17

Interface: SMBus(2-Wire/I2C)/SPI/UART/USART

Mounting Type: Surface Mount

Number of bits: 8bit

Operating Voltage: 2.7 to 3.6V

Operating temperature range: -40 to 85C