AM29LV640MB90REI Spansion Inc., AM29LV640MB90REI Datasheet - Page 33
![no-image](/images/manufacturer_photos/0/6/621/spansion_inc__sml.jpg)
AM29LV640MB90REI
Manufacturer Part Number
AM29LV640MB90REI
Description
Manufacturer
Spansion Inc.
Datasheet
1.AM29LV640MB90REI.pdf
(66 pages)
Specifications of AM29LV640MB90REI
Cell Type
NOR
Density
64Mb
Access Time (max)
90ns
Interface Type
Parallel
Boot Type
Bottom
Address Bus
23/22Bit
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Package Type
TSOP
Program/erase Volt (typ)
3 to 3.6V
Sync/async
Asynchronous
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Word Size
8/16Bit
Number Of Words
8M/4M
Supply Current
20mA
Mounting
Surface Mount
Pin Count
48
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AM29LV640MB90REI
Manufacturer:
AMD
Quantity:
20 000
Company:
Part Number:
AM29LV640MB90REIT
Manufacturer:
AMD
Quantity:
1 000
February 1, 2007 26190C8
DQ1 = 1?
No
Yes
(Note 3)
(Note 1)
Yes
(Note 2)
No
Write next address/data pair
Write number of addresses
to program minus 1(WC)
Write first address/data
Write program buffer to
address = Last Loaded
Write “Write to Buffer”
Read DQ7 - DQ0 with
Last Loaded Address
flash sector address
and Sector Address
Read DQ7 - DQ0 at
Buffer Operation?
Sector Address
FAIL or ABORT
command and
WC = WC - 1
Abort Write to
DQ7 = Data?
DQ7 = Data?
Figure 4. Write Buffer Programming Operation
DQ5 = 1?
Address
WC = 0 ?
No
Yes
No
No
No
D A T A
Yes
Yes
Yes
Am29LV640MT/B
S H E E T
Part of “Write to Buffer”
Command Sequence
Write to buffer ABORTED.
Must write “Write-to-buffer
Abort Reset” command
Write to a different
sequence to return
sector address
to read mode.
PASS
Notes:
1.
2. DQ7 can change simultaneously with DQ5.
3. If this flowchart location was reached because
4.
When Sector Address is specified, any address in
the selected sector is acceptable. However, when
loading Write-Buffer address locations with data, all
addresses must fall within the selected Write-Buffer
Page.
Therefore, verify DQ7 .
DQ5= “1”, then the device FAILED. If this flowchart
location was reached because DQ1= “1”, then the
Write to Buffer operation was ABORTED. In either
case, the proper reset command must write before
the device can begin another operation. If DQ1=1,
write the Write-Buffer-Programming-Abort-Reset
command. if DQ5=1, write the Reset command.
See
write buffer programming.
Table 13
for command sequences required for
31