The requested file:
https://pdf.datasheetcatalog.com/datasheets/400/335108_DS.pdf
is the data sheet for the following electronic components:

Texas Instruments

#	Part Name	Description
1	SN54LS651	OCTAL BUS TRANSCEIVERS AND REGISTERS
2	SN54LS651FK	OCTAL BUS TRANSCEIVERS AND REGISTERS
3	SN54LS651JT	OCTAL BUS TRANSCEIVERS AND REGISTERS
4	SN54LS652	OCTAL BUS TRANSCEIVERS AND REGISTERS
5	SN54LS652FK	OCTAL BUS TRANSCEIVERS AND REGISTERS
6	SN54LS652JT	OCTAL BUS TRANSCEIVERS AND REGISTERS
7	SN54LS653	OCTAL BUS TRANSCEIVERS AND REGISTERS
8	SN54LS653FK	OCTAL BUS TRANSCEIVERS AND REGISTERS
9	SN54LS653JT	OCTAL BUS TRANSCEIVERS AND REGISTERS
10	SN74LS651	OCTAL BUS TRANSCEIVERS AND REGISTERS
11	SN74LS651DW	OCTAL BUS TRANSCEIVERS AND REGISTERS
12	SN74LS651NT	OCTAL BUS TRANSCEIVERS AND REGISTERS
13	SN74LS653	OCTAL BUS TRANSCEIVERS AND REGISTERS
14	SN74LS653DW	OCTAL BUS TRANSCEIVERS AND REGISTERS
15	SN74LS653NT	OCTAL BUS TRANSCEIVERS AND REGISTERS

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