IC, I/O EXPANDER, 16BIT, 400KHZ, SOIC-24; IC, I/O EXPANDER, 16BIT, 400KHZ, SOIC-24; Chip Configuration:16 bit; Bus Frequency:400kHz; IC Interface Type:I2C, SMBus; No. of I/O's:16; Supply Voltage Range:2.3V to 5.5V; Digital IC Case Style:SOIC; No. of Pins:24