The requested file:
https://pdf.datasheetcatalog.com/datasheet/stmicroelectronics/6581.pdf
is the data sheet for the following electronic components:

ST Microelectronics

#	Part Name	Description
1	M29F400BB	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
2	M29F400BB45N1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
3	M29F400BB55M1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
4	M29F400BB70M1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
5	M29F400BB70N1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
6	M29F400BB70N1T	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
7	M29F400BB70N6	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
8	M29F400BT	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
9	M29F400BT55M1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
10	M29F400BT55N1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
11	M29F400BT70M1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
12	M29F400BT70N1	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
13	M29F400BT70N6	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY
14	M29F400BT90N6	4 MBIT (512KB X8 OR 256KB X16, BOOT BLOCK) SINGLE SUPPLY FLASH MEMORY

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