The requested file:
https://pdf.datasheetcatalog.com/datasheets2/73/73945_1.pdf
is the data sheet for the following electronic components:

Fairchild Semiconductor

#	Part Name	Description
1	DM74LS240N	Octal 3-STATE Buffer/Line Driver/Line Receiver
2	DM74LS240SJ	Octal 3-STATE Buffer/Line Driver/Line Receiver
3	DM74LS240WM	Octal 3-STATE Buffer/Line Driver/Line Receiver
4	DM74LS241N	Octal 3-STATE Buffer/Line Driver/Line Receiver
5	DM74LS241WM	Octal 3-STATE Buffer/Line Driver/Line Receiver

Select the part name and then you can download the datasheet in PDF format.