ST’s portfolio of interfaces includes standard interfaces (such as RS-232, RS-422, RS-423, RS-485, LVDS, and USB), I/O expanders, level translators and application-specific interfaces for smart cards and Ethernet.
USB

Products designed for USB data (transceivers) and/or power delivery applications (battery chargers and charger detection).
I/O Expanders & Level translators

I/O expanders, Interface between multi-voltage chipsets and system I/Os.
Power Line Transceivers

Come with an extensive toolbox that includes evaluation boards, software and certified protocol stacks, providing designers with a comprehensive development environment.
Darlington Arrays

High-voltage, high-current switch arrays containing multiple open-collector Darlington pairs or multiple Darlington transistors.