This part is a kind of semiconductor called 18CV8.

Function of this product has CMOS Programmable Electrically Erasable Logic Device.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

® International CMOS Technology Commercial/ Industrial PEEL™ 18CV8 -5/-7/-10/-15/-25 CMOS Programmable Electrically Erasable Logic Device Features s Multiple Speed Power, Temperature Options - VCC = 5 Volts ±10% - Speeds ranging from 5ns to 25 ns - Power as low as 37mA at 25MHz - Commercial and industrial versions available CMOS Electrically Erasable Technology - Superior factory testing - Reprogrammable in plastic package - Reduces retrofit and development costs Development / Programmer Support - Third party software and programmers - ICT PLACE Development Software and PDS-3 programmer - PLD-to-PEEL JEDEC file translator s Architectural Flexibility - Enhanced architecture fits in more logic - 74 product terms x 36 input AND array - 10 inputs and 8 I/O pins - 12 possible macrocel [ ... ]

18CV8 PDF Datasheet Download