The requested file:
https://pdf.datasheetcatalog.com/datasheet/motorola/SN74LS148D.pdf
is the data sheet for the following electronic components:

Motorola

#	Part Name	Description
1	74LS147	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
2	74LS148	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
3	SN54LS147	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
4	SN54LS147J	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
5	SN54LS148J	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
6	SN54LS748J	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
7	SN74LS147D	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
8	SN74LS147N	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
9	SN74LS148D	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
10	SN74LS148N	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
11	SN74LS748D	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
12	SN74LS748N	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS

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