This part is a kind of semiconductor called 74LS30.

Function of this product has 8-Input NAND Gate.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

54LS30 DM54LS30 DM74LS30 8-Input NAND Gate June 1989 54LS30 DM54LS30 DM74LS30 8-Input NAND Gate General Description This device contains a single gate which performs the logic NAND function Features Y Alternate Military Aerospace device (54LS30) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6360 – 1 Order Number 54LS30DMQB 54LS30FMQB 54LS30LMQB DM54LS30J DM54LS530W DM74LS30M or DM74LS30N See NS Package Number E20A J14A M14A N14A or W14B Function Table Y e ABCDEFGH Inputs A thru H All Inputs H One or More Input L H e High Logic Level L e Low Logic Level Output Y L H C1995 National Semiconductor Corporation TL F 6360 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military [ ... ]

74LS30 PDF Datasheet Download