Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

W25X32VSFI Datasheet(PDF) 11 Page - Winbond

Part # W25X32VSFI
Description  16M-BIT, 32M-BIT, AND 64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
Download  47 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W25X32VSFI Datasheet(HTML) 11 Page - Winbond

Back Button W25X32VSFI Datasheet HTML 7Page - Winbond W25X32VSFI Datasheet HTML 8Page - Winbond W25X32VSFI Datasheet HTML 9Page - Winbond W25X32VSFI Datasheet HTML 10Page - Winbond W25X32VSFI Datasheet HTML 11Page - Winbond W25X32VSFI Datasheet HTML 12Page - Winbond W25X32VSFI Datasheet HTML 13Page - Winbond W25X32VSFI Datasheet HTML 14Page - Winbond W25X32VSFI Datasheet HTML 15Page - Winbond Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 47 page
background image
W25X16, W25X32, W25X64
Publication Release Date:
- 11 -
February 26, 2007, Revision E
10.2 WRITE PROTECTION
Applications that use non-volatile memory must take into consideration the possibility of noise and
other adverse system conditions that may compromise data integrity. To address this concern the
W25X16/32/64 provides several means to protect data from inadvertent writes.
10.2.1 Write Protect Features
Device resets when VCC is below threshold.
Time delay write disable after Power-up.
Write enable/disable instructions.
Automatic write disable after program and erase.
Software write protection using Status Register.
Hardware write protection using Status Register and /WP pin.
Write Protection using Power-down instruction.
Upon power-up or at power-down the W25X16/32/64 will maintain a reset condition while VCC is
below the threshold value of VWI, (See Power-up Timing and Voltage Levels and Figure 20). While
reset, all operations are disabled and no instructions are recognized. During power-up and after the
VCC voltage exceeds VWI, all program and erase related instructions are further disabled for a time
delay of tPUW. This includes the Write Enable, Page Program, Sector Erase, Block Erase, Chip Erase
and the Write Status Register instructions. Note that the chip select pin (/CS) must track the VCC
supply level at power-up until the VCC-min level and tVSL time delay is reached. If needed a pull-up
resister on /CS can be used to accomplish this.
After power-up the device is automatically placed in a write-disabled state with the Status Register
Write Enable Latch (WEL) set to a 0. A Write Enable instruction must be issued before a Page
Program, Sector Erase, Chip Erase or Write Status Register instruction will be accepted. After
completing a program, erase or write instruction the Write Enable Latch (WEL) is automatically
cleared to a write-disabled state of 0.
Software controlled write protection is facilitated using the Write Status Register instruction and setting
the Status Register Protect (SRP) and Block Protect (TB, BP2, BP1, and BP0) bits. These Status
Register bits allow a portion or all of the memory to be configured as read only. Used in conjunction
with the Write Protect (/WP) pin, changes to the Status Register can be enabled or disabled under
hardware control. See Status Register for further information.
Additionally, the Power-down instruction offers an extra level of write protection as all instructions are
ignored except for the Release Power-down instruction.


Similar Part No. - W25X32VSFI

ManufacturerPart #DatasheetDescription
logo
Winbond
W25X32VSFIG WINBOND-W25X32VSFIG Datasheet
1Mb / 50P
   16M-BIT, 32M-BIT, AND 64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
More results

Similar Description - W25X32VSFI

ManufacturerPart #DatasheetDescription
logo
Winbond
W25X16 WINBOND-W25X16_08 Datasheet
1Mb / 50P
   16M-BIT, 32M-BIT, AND 64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X64V WINBOND-W25X64V Datasheet
1Mb / 44P
   64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X64BV WINBOND-W25X64BV Datasheet
1Mb / 43P
   64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X32A WINBOND-W25X32A Datasheet
1Mb / 45P
   32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X32BV WINBOND-W25X32BV Datasheet
1Mb / 45P
   32M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X16A WINBOND-W25X16A Datasheet
1Mb / 48P
   16M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
W25X16BV WINBOND-W25X16BV Datasheet
1Mb / 47P
   16M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
logo
FIDELIX
FM25Q16 FIDELIX-FM25Q16 Datasheet
2Mb / 62P
   16M-BIT Serial Flash memory with 4KB Sectors, Dual and Quad I/O SPI
FM25Q64 FIDELIX-FM25Q64 Datasheet
2Mb / 61P
   64M-BIT Serial Flash Memory with 4KB Sectors, Dual and Quad I/O SPI
FM25Q32 FIDELIX-FM25Q32 Datasheet
2Mb / 61P
   32M-BIT Serial Flash Memory with 4KB Sectors, Dual and Quad I/O SPI
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com