Conditioning: plastic tube. Conditioning unit: 15. Function: High-speed SPI interface 100kHz...1.7MHz. Note: port expander - SPI. Number of terminals: 28. Pd (Power Dissipation, Max): 700mW. RoHS: yes. Assembly/installation: PCB through-hole mounting. Housing: DIP. Housing (according to data sheet): DIP-28. Operating temperature: -40...+125°C. VCC: 1.8...5.5V. Supply voltage: 5.5V