The HCPL06XX optocouplers consist of an AIGaAS LED, optically coupled to a very high speed integrated photo-detector logic gate with a storable output (single channel devices). The devices are housed in a compact small-outline package. This output features an open col- lector, thereby permitting wired OR outputs. The HCPL0638 output consists of bipolar transistors on a CMOS process for reduced power consumption. The coupled parameters are guar- anteed over the temperature range of -400C to +850C. An internal noise shield provides superior common mode rejection.