The requested file:
https://pdf.datasheetcatalog.com/datasheet/infineon/1-DS_256M_D11_ubu_Rev1.0.pdf
is the data sheet for the following electronic components:

Infineon

#	Part Name	Description
1	HYS64D16301GU-5-C	DDR SDRAM Modules - 128MB (16Mx64) PC3200 1-bank
2	HYS64D16301GU-6-C	DDR SDRAM Modules - 128MB (16Mx64) PC2700 1-bank
3	HYS64D16301HU-5-C	DDR SDRAM Modules - 128MB (16Mx64) PC3200 1-bank
4	HYS64D16301HU-6-C	DDR SDRAM Modules - 128MB (16Mx64) PC2700 1-bank
5	HYS64D32300GU-5-C	DDR SDRAM Modules - 256MB (32Mx64) PC3200 1-bank
6	HYS64D32300GU-6-C	DDR SDRAM Modules - 256MB (32Mx64) PC2700 1-bank
7	HYS64D32300HU-5-C	DDR SDRAM Modules - 256MB (32Mx64) PC3200 1-bank
8	HYS64D64320GU-5-C	DDR SDRAM Modules - 512MB (64Mx64) PC3200 2-bank
9	HYS64D64320GU-6-C	DDR SDRAM Modules - 512MB (64Mx64) PC2700 2-bank
10	HYS64D64320HU-5-C	DDR SDRAM Modules - 512MB (64Mx64) PC3200 2-bank
11	HYS64D64320HU-6-C	DDR SDRAM Modules - 512MB (64Mx64) PC2700 2-bank
12	HYS72D32300GU-5-C	DDR SDRAM Modules - 256MB (32Mx72) PC3200 1-bank
13	HYS72D32300GU-6-C	DDR SDRAM Modules - 256MB (32Mx72) PC2700 1-bank
14	HYS72D32300HU-5-C	DDR SDRAM Modules - 256Mb (32Mx72) PC3200 1-bank
15	HYS72D32300HU-6-C	DDR SDRAM Modules - 256MB (32Mx72) PC2700 1-bank
16	HYS72D64320GU-5-C	DDR SDRAM Modules - 512MB (64Mx72) PC3200 2-bank
17	HYS72D64320GU-6-C	DDR SDRAM Modules - 512MB (64Mx72) PC2700 2-bank
18	HYS72D64320HU-5-C	DDR SDRAM Modules - 512MB (64Mx72) PC3200 2-bank
19	HYS72D64320HU-6-C	DDR SDRAM Modules - 512MB (64Mx72) PC2700 2-bank

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