M28W640FSU データシートの表示（PDF） - STMicroelectronics
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M28W640FSU
STMicroelectronics
M28W640FSU Datasheet PDF : 49 Pages
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M28W320FSU, M28W640FSU
Table 15. Write AC Characteristics, Chip Enable Controlled
Symbol Alt
Parameter
tAVAV tWC Write Cycle Time
Min
tAVEH tAS Address Valid to Chip Enable High
Min
tDVEH tDS Data Valid to Chip Enable High
Min
tEHAX tAH Chip Enable High to Address Transition
Min
tEHDX tDH Chip Enable High to Data Transition
Min
tEHEL tCPH Chip Enable High to Chip Enable Low
Min
tEHGL
Chip Enable High to Output Enable Low
Min
tEHWH tWH Chip Enable High to Write Enable High
Min
tELEH tCP Chip Enable Low to Chip Enable High
Min
tELQV
Chip Enable Low to Output Valid
Min
tQVVPL
(1,2)
Output Valid to VPP Low
Min
tVPHEH
(1)
tVPS VPP High to Chip Enable High
Min
tWLEL tCS Write Enable Low to Chip Enable Low
Min
Note: 1. Sampled only, not 100% tested.
2. Applicable if VPP is seen as a logic input (VPP < 3.6V).
M28W320FSU
70
70
45
45
0
0
25
25
0
45
70
0
200
0
M28W640FSU
Unit
70
70
ns
45
ns
45
ns
0
ns
0
ns
25
ns
25
ns
0
ns
45
ns
70
ns
0
ns
200
ns
0
ns
27/49
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