The requested file:
https://pdf.datasheetcatalog.com/datasheet/WINGS/82C55.pdf
is the data sheet for the following electronic components:

Wing Shing Computer Components

#	Part Name	Description
1	82C55	CMOS Programmable peripheral Interface
2	WS82C55A-5C	CMOS Programmable peripheral Interface
3	WS82C55A-5P	CMOS Programmable peripheral Interface
4	WS82C55A-5Q	CMOS Programmable peripheral Interface

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