Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

W25Q32DWZEIP Datasheet(PDF) 11 Page - Winbond

Part # W25Q32DWZEIP
Description  1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
Download  82 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W25Q32DWZEIP Datasheet(HTML) 11 Page - Winbond

Back Button W25Q32DWZEIP Datasheet HTML 7Page - Winbond W25Q32DWZEIP Datasheet HTML 8Page - Winbond W25Q32DWZEIP Datasheet HTML 9Page - Winbond W25Q32DWZEIP Datasheet HTML 10Page - Winbond W25Q32DWZEIP Datasheet HTML 11Page - Winbond W25Q32DWZEIP Datasheet HTML 12Page - Winbond W25Q32DWZEIP Datasheet HTML 13Page - Winbond W25Q32DWZEIP Datasheet HTML 14Page - Winbond W25Q32DWZEIP Datasheet HTML 15Page - Winbond Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 82 page
background image
W25Q32DW
Publication Release Date: January 18, 2011
- 11 -
Preliminary - Revision C
9.1.3
Quad SPI Instructions
The W25Q32DW supports Quad SPI operation when using instructions such as “Fast Read Quad Output
(6Bh)”, “Fast Read Quad I/O (EBh)”, “Word Read Quad I/O (E7h)” and “Octal Word Read Quad I/O
(E3h)”. These instructions allow data to be transferred to or from the device four to six times the rate of
ordinary Serial Flash. The Quad Read instructions offer a significant improvement in continuous and
random access transfer rates allowing fast code-shadowing to RAM or execution directly from the SPI
bus (XIP). When using Quad SPI instructions the DI and DO pins become bidirectional IO0 and IO1, and
the /WP and /HOLD pins become IO2 and IO3 respectively. Quad SPI instructions require the non-
volatile Quad Enable bit (QE) in Status Register-2 to be set.
9.1.4
QPI Instructions
The W25Q32DW supports Quad Peripheral Interface (QPI) operations only when the device is switched
from Standard/Dual/Quad SPI mode to QPI mode using the “Enable QPI (38h)” instruction. The typical
SPI protocol requires that the byte-long instruction code being shifted into the device only via DI pin in
eight serial clocks. The QPI mode utilizes all four IO pins to input the instruction code, thus only two serial
clocks are required. This can significantly reduce the SPI instruction overhead and improve system
performance in an XIP environment. Standard/Dual/Quad SPI mode and QPI mode are exclusive. Only
one mode can be active at any given time. “Enable QPI (38h)” and “Disable QPI (FFh)” instructions are
used to switch between these two modes. Upon power-up or after a software reset using “Reset (99h)”
instruction, the default state of the device is Standard/Dual/Quad SPI mode. To enable QPI mode, the
non-volatile Quad Enable bit (QE) in Status Register-2 is required to be set. When using QPI instructions,
the DI and DO pins become bidirectional IO0 and IO1, and the /WP and /HOLD pins become IO2 and IO3
respectively. See Figure 3 for the device operation modes.
9.1.5
Hold Function
For Standard SPI and Dual SPI operations, the /HOLD signal allows the W25Q32DW operation to be
paused while it is actively selected (when /CS is low). The /HOLD function may be useful in cases where
the SPI data and clock signals are shared with other devices. For example, consider if the page buffer
was only partially written when a priority interrupt requires use of the SPI bus. In this case the /HOLD
function can save the state of the instruction and the data in the buffer so programming can resume
where it left off once the bus is available again. The /HOLD function is only available for standard SPI and
Dual SPI operation, not during Quad SPI or QPI.
To initiate a /HOLD condition, the device must be selected with /CS low. A /HOLD condition will activate
on the falling edge of the /HOLD signal if the CLK signal is already low. If the CLK is not already low the
/HOLD condition will activate after the next falling edge of CLK. The /HOLD condition will terminate on the
rising edge of the /HOLD signal if the CLK signal is already low. If the CLK is not already low the /HOLD
condition will terminate after the next falling edge of CLK. During a /HOLD condition, the Serial Data
Output (DO) is high impedance, and Serial Data Input (DI) and Serial Clock (CLK) are ignored. The Chip
Select (/CS) signal should be kept active (low) for the full duration of the /HOLD operation to avoid
resetting the internal logic state of the device.


Similar Part No. - W25Q32DWZEIP

ManufacturerPart #DatasheetDescription
logo
Winbond
W25Q32DWZEIP WINBOND-W25Q32DWZEIP Datasheet
1Mb / 82P
   1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q32DWZEIP WINBOND-W25Q32DWZEIP Datasheet
1Mb / 82P
   1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
More results

Similar Description - W25Q32DWZEIP

ManufacturerPart #DatasheetDescription
logo
Winbond
W25Q32DW WINBOND-W25Q32DW_12 Datasheet
1Mb / 82P
   1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q32DWSSIG-TR WINBOND-W25Q32DWSSIG-TR Datasheet
1Mb / 82P
   1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q32FWZPIG-TR WINBOND-W25Q32FWZPIG-TR Datasheet
3Mb / 94P
   1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q32FV WINBOND-W25Q32FV Datasheet
969Kb / 99P
   3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q32FVTBIG-TR WINBOND-W25Q32FVTBIG-TR Datasheet
2Mb / 99P
   3V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16FWUUIQ-TR WINBOND-W25Q16FWUUIQ-TR Datasheet
1Mb / 90P
   1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q128FW WINBOND-W25Q128FW Datasheet
1Mb / 96P
   1.8V 128M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DW WINBOND-W25Q16DW_12 Datasheet
1Mb / 85P
   1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DWSSIG-TR WINBOND-W25Q16DWSSIG-TR Datasheet
1Mb / 84P
   1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q64DW WINBOND-W25Q64DW Datasheet
1Mb / 82P
   1.8V 64M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   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