Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

AM29F400BT-90 Datasheet(PDF) 16 Page - SPANSION

Part # AM29F400BT-90
Description  4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
Download  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SPANSION [SPANSION]
Direct Link  http://www.spansion.com
Logo SPANSION - SPANSION

AM29F400BT-90 Datasheet(HTML) 16 Page - SPANSION

Back Button AM29F400BT-90 Datasheet HTML 12Page - SPANSION AM29F400BT-90 Datasheet HTML 13Page - SPANSION AM29F400BT-90 Datasheet HTML 14Page - SPANSION AM29F400BT-90 Datasheet HTML 15Page - SPANSION AM29F400BT-90 Datasheet HTML 16Page - SPANSION AM29F400BT-90 Datasheet HTML 17Page - SPANSION AM29F400BT-90 Datasheet HTML 18Page - SPANSION AM29F400BT-90 Datasheet HTML 19Page - SPANSION AM29F400BT-90 Datasheet HTML 20Page - SPANSION Next Button
Zoom Inzoom in Zoom Outzoom out
 16 / 43 page
background image
14
Am29F400B
21505E8 November 11, 2009
D A TA
SH EE T
addresses are no longer latched. The system can
determine the status of the program operation by using
DQ7, DQ6, or RY/BY#. See “The Erase Resume
command is valid only during the Erase Suspend
mode.” for information on these status bits.
Any commands written to the device during the
Embedded Program Algorithm are ignored. Note that a
hardware reset immediately terminates the program-
m i ng op erat io n. Th e Byt e Pr ogra m co mm an d
sequence should be reinitiated once the device has
reset to reading array data, to ensure data integrity.
Programming is allowed in any sequence and across
sector boundaries. A bit cannot be programmed
from a “0” back 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 suc-
cessful. However, a succeeding read will show that the
data is still “0”. Only erase operations can convert a “0”
to a “1”.
Note:
See Table 5 for program command sequence.
Figure 2.
Program Operation
Chip Erase Command Sequence
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 algo-
rithm 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 con-
trols or timings during these operations. Table 5 shows
the address and data requirements for the chip erase
command sequence.
Any comm ands wr it ten to th e chip dur ing th e
Embedded Erase algorithm are ignored. Note that a
hardware reset during the chip erase operation imme-
diately terminates the operation. The Chip Erase
command sequence should be reinitiated once the
device has returned to reading array data, to ensure
data integrity.
The system can determine the status of the erase oper-
ation by using DQ7, DQ6, DQ2, or RY/BY#. See “The
Erase Resume command is valid only during the Erase
Suspend mode.” 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.
Figure 3 illustrates the algorithm for the erase opera-
tion. See the “Erase/Program Operations” tables in “AC
Characteristics” for parameters, and to Figure 14 for
timing diagrams.
Sector Erase Command Sequence
Sector erase is a six bus cycle operation. The sector
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
address of the sector to be erased, and the sector
erase command. Table 5 shows the address and data
requirements for the sector erase command sequence.
The device does not require the system to preprogram
the memory prior to erase. The Embedded Erase algo-
rithm automatically programs and verifies the sector for
an all zero data pattern prior to electrical erase. The
system is not required to provide any controls or
timings during these operations.
After the command sequence is written, a sector erase
time-out of 50 µs begins. During the time-out period,
additional sector addresses and sector erase com-
mands may be written. Loading the sector erase buffer
may be done in any sequence, and the number of
sectors may be from one sector to all sectors. The time
between these additional cycles must be less than 50
START
Write Program
Command Sequence
Data Poll
from System
Verify Data?
No
Yes
Last Address?
No
Yes
Programming
Completed
Increment Address
Embedded
Program
algorithm
in progress


Similar Part No. - AM29F400BT-90

ManufacturerPart #DatasheetDescription
logo
Advanced Micro Devices
AM29F400BT-90DGC AMD-AM29F400BT-90DGC Datasheet
139Kb / 9P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 1
AM29F400BT-90DGC1 AMD-AM29F400BT-90DGC1 Datasheet
139Kb / 9P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 1
AM29F400BT-90DGC2 AMD-AM29F400BT-90DGC2 Datasheet
210Kb / 12P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 2
AM29F400BT-90DGE AMD-AM29F400BT-90DGE Datasheet
139Kb / 9P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 1
AM29F400BT-90DGE1 AMD-AM29F400BT-90DGE1 Datasheet
139Kb / 9P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die Revision 1
More results

Similar Description - AM29F400BT-90

ManufacturerPart #DatasheetDescription
logo
Advanced Micro Devices
AM29F400B AMD-AM29F400B Datasheet
515Kb / 37P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B AMD-AM29F400B_00 Datasheet
911Kb / 42P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B AMD-AM29F400B_06 Datasheet
870Kb / 43P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29LV400 AMD-AM29LV400 Datasheet
516Kb / 40P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV400B AMD-AM29LV400B_03 Datasheet
382Kb / 14P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only, Boot Sector Flash Memory
AM29LV400B AMD-AM29LV400B Datasheet
47Kb / 7P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
logo
SPANSION
AM29LV400BT-90EC SPANSION-AM29LV400BT-90EC Datasheet
1Mb / 48P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV400BB-90EC SPANSION-AM29LV400BB-90EC Datasheet
1Mb / 48P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV400BT-70EI SPANSION-AM29LV400BT-70EI Datasheet
1Mb / 48P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV400BT-70SC SPANSION-AM29LV400BT-70SC Datasheet
1Mb / 48P
   4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
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


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