參數(shù)資料
型號(hào): TC58DVM72F1FT00
廠商: Toshiba Corporation
英文描述: 128-MBIT (16M x 8 BITS/8M x 16BITS) CMOS NAND E2PROM
中文描述: 128兆位(16米x 8 BITS/8M x 16位)的CMOS NAND型E2PROM的
文件頁(yè)數(shù): 25/34頁(yè)
文件大?。?/td> 369K
代理商: TC58DVM72F1FT00
TC58DVM72A1FT00/ TC58DVM72F1FT00
TC58DAM72A1FT00/ TC58DAM72F1FT00
2003-01-24 25/34
APPLICATION NOTES AND COMMENTS
(1)
Power-on/off sequence:
The
WP
signal is useful for protecting against data corruption at power-on/off. The following timing
sequence is necessary.
The
WP
signal may be negated any time after the V
CC
reaches 2.5 V and
CE
signal is kept high in
power up sequence.
2.7 V
In order to operate this device stably, after V
CC
becomes 2.5 V and V
CCQ
becomes 1.5V, it recommends
starting access after about 200
P
s.
(2)
Status after power-on
The following sequence is necessary because some input signals may not be stable at power-on.
(3)
Prohibition of unspecified commands
The operation commands are listed in Table 3. Input of a command other than those specified in Table 3 is
prohibited. Stored data may be corrupted if an unknown command is entered during the command cycle.
(4)
Restriction of command while Busy state
During Busy state, do not input any command except 70H and FFH.
(5)
Acceptable commands after Serial Input command “80H”
Once the Serial Input command “80H” has been input, do not input any command other than the Program
Execution command “10H” or the Reset command “FFH”.
If a command other than “10H” or “FFH” is input, the Program operation is not performed.
FF
Reset
Power on
Figure 16.
Command other than
“10H” or “FFH”
80
Programming cannot be executed.
For this operation the “FFH” command is needed.
10
XX
Figure 15. Power-on/off Sequence
0 V
V
CCQ
1.65 V
1.5 V
Don’t
care
Don’t
care
CE , WE , RE
CLE, ALE
V
IL
Operation
V
IL
V
IH
WP
0 V
V
CC
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