Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.NET

X  

Preview PDF Download HTML

EN29LV320C Datasheet(HTML) 20 Page - Eon Silicon Solution Inc.

Part No. EN29LV320C
Description  32 Megabit (4096K x 8-bit / 2048K x 16-bit) Flash Memory Boot Sector Flash Memory, CMOS 3.0 Volt-only
Download  49 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  EON [Eon Silicon Solution Inc.]
Homepage  http://www.essi.com.tw
Logo 

EN29LV320C Datasheet(HTML) 20 Page - Eon Silicon Solution Inc.

Zoom Inzoom in Zoom Outzoom out
Go To Page :
/ 49 page
background image
This Data Sheet may be revised by subsequent versions
© 2004 Eon Silicon Solution, Inc.,
www.eonssi.com
or modifications due to changes in technical specifications.
20
EN29LV320C
Rev. B, Issue Date: 2011/05/13
Any commands written to the device during the program operation are ignored. Programming status
can be checked by sampling data on DQ7 (DATA# polling) or on DQ6 (toggle bit). When the program
operation is successfully completed, the device returns to read mode and the user can read the data
programmed to the device at that address. Note that data can not be programmed from a “0” to a “1”.
Attempting to do so may halt the operation and set DQ5 to “1”, or cause the Data# Polling algorithm to
indicate the operation was successful. However, a succeeding read will show that the data is still “0”.
Only erase operations can convert a “0” to a “1”. When programming time limit is exceeded, DQ5 will
produce a logical “1” and a Reset command can return the device to Read mode.
Programming is allowed in any sequence across sector boundaries.
Chip Erase Command
Chip erase is a six-bus-cycle operation. The chip erase command sequence is initiated by writing two
unlock cycles, followed by a set-up command. Two additional unlock write cycles are then followed by
the chip erase command, which in turn invokes the Embedded Erase algorithm. The device does not
require the system to preprogram prior to erase. The Embedded Erase algorithm automatically
preprograms and verifies the entire memory for an all zero data pattern prior to electrical erase. The
system is not required to provide any controls or timings during these operations. The Command
Definitions table shows the address and data requirements for the chip erase command sequence.
Any commands written to the chip during the Embedded Chip Erase algorithm are ignored.
The system can determine the status of the erase operation by using DQ7, DQ6, or DQ2. See “Write
Operation Status” for information on these status bits. When the Embedded Erase algorithm is
complete, the device returns to reading array data and addresses are no longer latched.
Sector Erase Command Sequence
Sector erase is a six bus cycle operation. The sector erase command sequence is initiated by writing
two un-lock cycles, followed by a set-up command. Two additional unlock write cycles are then followed
by the address of the sector to be erased, and the sector erase command. The Command Definitions
table shows the address and data requirements for the sector erase command sequence.
Once the sector erase operation has begun, only the Sector Erase Suspend command is valid. All
other commands are ignored. If there are several sectors to be erased, Sector Erase Command
sequences must be issued for each sector. That is, only a sector address can be specified for each
Sector Erase command
. Users must issue another Sector Erase command for the next sector to be
erased after the previous one is completed.
When the Embedded Erase algorithm is completed, the device returns to reading array data and
addresses are no longer latched. The system can determine the status of the erase operation by using
DQ7, DQ6, or DQ2. Refer to “Write Operation Status” for information on these status bits. Flowchart 4
illustrates the algorithm for the erase operation. Refer to the Erase/Program Operations tables in the
“AC Characteristics” section for parameters, and to the Sector Erase Operations Timing diagram for
timing waveforms.


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 


Datasheet Download




Link URL



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

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   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