The Broadcom device is a low power consumption high gain single channel optocoupler. It is the equivalent dual channel product of the single channel ACPL-K70A in Stretched SO-8 footprint. Each channel can be driven with an input current as low as 40 μA and has a typical current transfer ratio of 3500 percent. Stretched SO-8 package
Ultra Low Input Current Capability 40 μA
Specified for 3.3V and 5V Operation
TTL and CMOS Compatible Output