Single-Channel: 6N137M, HCPL2601M, HCPL2611M Dual-.
Fairchild Semiconductor
HCPL2611M - Single-Channel High-Speed 10 MBit/s Logic Gate Optocouplers
Single-Channel: 6N137M, HCPL2601M, HCPL2611M Dual-Channel: HCPL2630M, HCPL2631M — High Speed 10MBit/s Logic Gate Optocouplers April 2013 Single-Chan.