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M28W640ECT Datasheet(PDF) 28 Page - STMicroelectronics

Part # M28W640ECT
Description  64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory
Download  55 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M28W640ECT Datasheet(HTML) 28 Page - STMicroelectronics

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Table 18. Write AC Characteristics, Chip Enable Controlled
Note: 1. Sampled only, not 100% tested.
2. Applicable if VPP is seen as a logic input (VPP < 3.6V).
3. To be characterized.
Symbol
Alt
Parameter
M28W640EC
Unit
70
85
90
10
tAVAV
tWC
Write Cycle Time
Min
70(3)
85
90
100
ns
tAVEH
tAS
Address Valid to Chip Enable High
Min
45
45
50
50
ns
tDVEH
tDS
Data Valid to Chip Enable High
Min
45
45
50
50
ns
tEHAX
tAH
Chip Enable High to Address
Transition
Min
0000
ns
tEHDX
tDH
Chip Enable High to Data Transition
Min
0000
ns
tEHEL
tCPH
Chip Enable High to Chip Enable Low
Min
25
25
30
30
ns
tEHGL
Chip Enable High to Output Enable
Low
Min
25
25
30
30
ns
tEHWH
tWH
Chip Enable High to Write Enable High
Min
0000
ns
tELEH
tCP
Chip Enable Low to Chip Enable High
Min
45
45
50
50
ns
tELQV
Chip Enable Low to Output Valid
Min
70(3)
85
90
100
ns
tQVVPL
(1,2)
Output Valid to VPP Low
Min
0000
ns
tQVWPL
Data Valid to Write Protect Low
Min
0000
ns
tVPHEH
(1)
tVPS
VPP High to Chip Enable High
Min
200
200
200
200
ns
tWLEL
tCS
Write Enable Low to Chip Enable Low
Min
0000
ns
tWPHEH
Write Protect High to Chip Enable High
Min
45
45
50
50
ns


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