Vishay, 6N136-X009 DC Input Open Collector Output Optocoupler, Surface Mount, 8-Pin SMD

The Vishay high speed optocoupler with a GaAIAs infrared emitting diode, optically coupled with an integrated photo detector which consists of a photo diode and a high-speed transistor in a DIP-8 plastic package. Signals can be transmitted between two electrically separated circuits up to frequencies of 2 MHz. The potential difference between the circuits to be coupled should not exceed the maximum permissible reference voltages. External base wiring possible.

It is TTL compatible
It has 1 Mbit/s high bit rates
It is compliant to RoHS directive and lead