參數(shù)資料
型號(hào): AM29LV640MH101EF
廠商: SPANSION LLC
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 100 ns, PDSO56
封裝: MO-142B, TSOP-56
文件頁(yè)數(shù): 21/59頁(yè)
文件大?。?/td> 1590K
代理商: AM29LV640MH101EF
28
Am29LV640MH/L
February 16, 2003
ADV ANCE
I N FO RMAT I O N
Figure 4.
Write Buffer Programming Operation
Write “Write to Buffer”
command and
Sector Address
Write number of addresses
to program minus 1(WC)
and Sector Address
Write program buffer to
flash sector address
Write first address/data
Write to a different
sector address
FAIL or ABORT
PASS
Read DQ7 - DQ0 at
Last Loaded Address
Read DQ7 - DQ0 with
address = Last Loaded
Address
Write next address/data pair
WC = WC - 1
WC = 0 ?
Part of “Write to Buffer”
Command Sequence
Yes
No
Abort Write to
Buffer Operation?
DQ7 = Data?
DQ5 = 1?
DQ1 = 1?
Write to buffer ABORTED.
Must write “Write-to-buffer
Abort Reset” command
sequence to return
to read mode.
Notes:
1.
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.
2.
DQ7 may change simultaneously with DQ5.
Therefore, DQ7 should be verified.
3.
If this flowchart location was reached because
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 be written 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.
4.
See Table 11 for command sequences required for
write buffer programming.
(Note 3)
(Note 1)
(Note 2)
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