IL015E: Low-Power, 4-Channel (all same direction) Isolator, 2.5 kV, Wide SOIC
The IL015E is a low-power, 3.3/5V, 10 Mbps, 100C Isolator. Typical total quiescent current is just 0.3 mA per channel. 16-pin wide-body (0.3"-wide) SOIC package.
The "E" suffix indicates this part is lead (Pb) free.