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M28W640FCT データシート(PDF) 40 Page - STMicroelectronics

部品番号 M28W640FCT
部品情報  64 Mbit (4Mbx16, Boot Block) 3V Supply Flash memory
PDF  77 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M28W640FCT データシート(HTML) 40 Page - STMicroelectronics

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DC and AC parameters
M28W640FCT, M28W640FCB
40/77
Table 17.
Write AC characteristics, Write enable controlled
Symbol
Alt
Parameter
M28W640FCT,
M28W640FCB
Unit
70
85
90
10
tAVAV
tWC Write Cycle Time
Min
70
85
90
100
ns
tAVWH
tAS Address Valid to Write Enable High
Min
45
45
50
50
ns
tDVWH
tDS Data Valid to Write Enable High
Min
45
45
50
50
ns
tELWL
tCS
Chip Enable Low to Write Enable
Low
Min
0
0
0
0
ns
tELQV
Chip Enable Low to Output Valid
Min
70
85
90
100
ns
tQVVPL
(1)
(2)
1.
Sampled only, not 100% tested.
2.
Applicable if VPP is seen as a logic input (VPP < 3.6V).
Output Valid to VPP Low
Min
0
0
0
0
ns
tQVWPL
Output Valid to Write Protect Low
Min
0
0
0
0
ns
tVPHWH
(1)
tVPS VPP High to Write Enable High
Min
200
200
200
200
ns
tWHAX
tAH
Write Enable High to Address
Transition
Min
0
0
0
0
ns
tWHDX
tDH
Write Enable High to Data
Transition
Min
0
0
0
0
ns
tWHEH
tCH
Write Enable High to Chip Enable
High
Min
0
0
0
0
ns
tWHEL
Write Enable High to Chip Enable
Low
Min
25
25
30
30
ns
tWHGL
Write Enable High to Output
Enable Low
Min
20
20
30
30
ns
tWHWL
tWP
H
Write Enable High to Write Enable
Low
Min
25
25
30
30
ns
tWLWH
tWP
Write Enable Low to Write Enable
High
Min
45
45
50
50
ns
tWPHWH
Write Protect High to Write Enable
High
Min
45
45
50
50
ns



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