Electronic Components Datasheet Search
  English  ▼

Delete All


Preview PDF Download HTML

EN29GL064AT Datasheet(PDF) 31 Page - Eon Silicon Solution Inc.

Part No. EN29GL064AT
Description  64 Megabit (8192K x 8-bit / 4096K x 16-bit) Flash Memory Page mode Flash Memory, CMOS 3.0 Volt-only
Download  58 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  EON [Eon Silicon Solution Inc.]
Homepage  http://www.essi.com.tw

EN29GL064AT Datasheet(HTML) 31 Page - Eon Silicon Solution Inc.

Zoom Inzoom in Zoom Outzoom out
 31 / 58 page
background image
This Data Sheet may be revised by subsequent versions
©2004 Eon Silicon Solution, Inc.,
or modifications due to changes in technical specifications.
Rev. B, Issue Date: 2011/04/12
Table 7 contains all possible combinations of the DYB, PPB, and PPB Lock Bit relating to the status of
the sector. In summary, if the PPB Lock Bit is locked (set to “0”), no changes to the PPBs are allowed.
The PPB Lock Bit can only be unlocked (reset to “1”) through a hardware reset or power cycle. See
also Figure 9 for an overview of the Advanced Sector Protection feature.
Hardware Data Protection Methods
The device offers two main types of data protection at the sector level via hardware control:
• When WP#/ACC is at VIL, the either the highest or lowest sector is locked (device specific).
There are additional methods by which intended or accidental erasure of any sectors can be prevented
via hardware means. The following subsections describes these methods:
WP#/ACC Method
The Write Protect feature provides a hardware method of protecting one outermost sector. This
function is provided by the WP#/ACC pin and overrides the previously discussed Sector
Protection/Unprotection method.
If the system asserts VIL on the WP#/ACC pin, the device disables program and erase functions in the
highest or lowest sector independently of whether the sector was protected or unprotected using the
method described in Advanced Sector Protection/Unprotection.
If the system asserts VIH on the WP#/ACC pin, the device reverts to whether the boot sectors were last
set to be protected or unprotected. That is, sector protection or unprotection for these sectors depends
on whether they were last protected or unprotected.
The WP#/ACC pin must be held stable during a command sequence execution. WP# has an internal
pull-up; when unconnected, WP# is set at VIH.
If WP#/ACC is at VIL when the device is in the standby mode, the maximum input load current is
Low VCC Write Inhibit
When VCC is less than VLKO, the device does not accept any write cycles. This protects data during
VCC power-up and power-down.
The command register and all internal program/erase circuits are disabled, and the device resets to
reading array data. Subsequent writes are ignored until VCC is greater than VLKO. The system must
provide the proper signals to the control inputs to prevent unintentional writes when VCC is greater
than VLKO.
Write Pulse “Glitch Protection”
Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write cycle.
Power-Up Write Inhibit
If WE# = CE# = RESET# = VIL and OE# = VIH during power up, the device does not accept
commands on the rising edge of WE#. The internal state machine is automatically reset to the read
mode on power-up.

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 

Datasheet Download

Link URL

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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   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