27C256A15D Datasheet and 27C256A15D manual

Manufacturer : Philips 

Packing : SO 

Pins : 28 

Temperature : Min -40 °C | Max 125 °C

Size : 609 KB

Application : "2-7 V, 256K-bit CMOS EPROM (32Kx8)" 

27C256A15D PDF Download