Broadcom/Avago ACFL-5211T Automotive-Grade Digital Optocoupler is a dual-channel, bidirectional, high-speed 1MBd digital optocoupler. The ACFL-5211T has a stretched SO-12 package outline that is designed to be compatible with standard surface mount processes. It occupies the same land area as the single-channel equivalent, ACPL-K43T, in a stretched SO8 package.