The requested file:
https://pdf.datasheetcatalog.com/datasheets/134/231447_DS.pdf
is the data sheet for the following electronic components:

National Semiconductor

#	Part Name	Description
1	54153DMQB	Dual 4-Line to 1-Line Data Selectors/Multiplexers
2	54153FMQB	Dual 4-Line to 1-Line Data Selectors/Multiplexers
3	74153	Dual 4-Line to 1-Line Data Selectors/Multiplexers
4	DM54153J	Dual 4-Line to 1-Line Data Selectors/Multiplexers
5	DM54153W	Dual 4-Line to 1-Line Data Selectors/Multiplexers
6	DM74153N	Dual 4-Line to 1-Line Data Selectors/Multiplexers

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