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

SGS Thomson Microelectronics

#	Part Name	Description
1	HCC4011B	NAND GATES
2	HCC4012B	NAND GATES
3	HCC4023B	NAND GATES
4	HCF4011B	NAND GATES
5	HCF4012B	NAND GATES
6	HCF4023B	NAND GATES

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