This part is a kind of semiconductor called 5486DMQB.

Function of this product has Quad 2-Input Exclusive-OR Gates.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

5486 DM5486 DM7486 Quad 2-Input Exclusive-OR Gates June 1989 5486 DM5486 DM7486 Quad 2-Input Exclusive-OR Gates General Description This device contains four independent gates each of which performs the logic exclusive-OR function Features Y Alternate Military Aerospace device (5486) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6531 – 1 Order Number 5486DMQB 5486FMQB DM5486J DM5486W or DM7486N See NS Package Number J14A N14A or W14B Function Table YeA Inputs A L L H H B L H L H Z B Output Y L H H L H e High Logic Level L e Low Logic Level C1995 National Semiconductor Corporation TL F 6531 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devic [ ... ]

5486DMQB PDF Datasheet Download