This part is a kind of semiconductor called 5432.

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

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

5432 DM5432 DM7432 Quad 2-Input OR Gates June 1989 5432 DM5432 DM7432 Quad 2-Input OR Gates General Description This device contains four independent gates each of which performs the logic OR function Features Y Alternate Military Aerospace device (5432) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6511 – 1 Order Number 5432DMQB 5432FMQB DM5432J DM5432W or DM7432N See NS Package Number J14A N14A or W14B Function Table YeAaB Inputs Output AB Y LL LH HL HH L H H H H e High Logic Level L e Low Logic Level C1995 National Semiconductor Corporation TL F 6511 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact t [ ... ]

5432 PDF Datasheet Download