Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)

Micropower Quad-Channel Digital Isolator, Default Low (3/1 Channel Directionality)
3kV rms, Default Low, Dual-Channel Digital Isolators (2/0 Channel Directionality)
Micropower, Dual-Channel Digital Isolators, Default High (2/0 Channel Directionality)