M28W640FCT STMICROELECTRONICS [STMicroelectronics], M28W640FCT Datasheet - Page 26

• Manufacturer Part Number: M28W640FCT
• Description: 64 Mbit (4Mb x16, Boot Block) 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M28W640FCT, M28W640FCB
Table 17. Write AC Characteristics, Write Enable Controlled
Note: 1. Sampled only, not 100% tested.
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t
t
QVVPL
VPHWH
Symbol
t
t
WPHWH
t
t
t
t
t
t
t
t
QVWPL
t
t
t
t
WHWL
WLWH
AVWH
DVWH
WHAX
WHDX
WHEH
WHGL
WHEL
ELWL
ELQV
AVAV
2. Applicable if V
(1,2)
(1)
t
t
t
WPH
t
t
t
Alt
t
t
t
VPS
t
WC
WP
DS
CS
AH
DH
CH
AS
PP
Write Cycle Time
Address Valid to Write Enable High
Data Valid to Write Enable High
Chip Enable Low to Write Enable Low
Chip Enable Low to Output Valid
Output Valid to V
Output Valid to Write Protect Low
V
Write Enable High to Address Transition
Write Enable High to Data Transition
Write Enable High to Chip Enable High
Write Enable High to Chip Enable Low
Write Enable High to Output Enable Low
Write Enable High to Write Enable Low
Write Enable Low to Write Enable High
Write Protect High to Write Enable High
is seen as a logic input (V
PP
High to Write Enable High
PP
Parameter
Low
PP
< 3.6V).
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
200
70
70
45
45
70
25
20
25
45
45
M28W640FCT, M28W640FCB
0
0
0
0
0
0
200
85
85
45
45
85
25
20
25
45
45
0
0
0
0
0
0
200
90
90
50
50
90
30
30
30
50
50
0
0
0
0
0
0
100
100
200
10
50
50
30
30
30
50
50
0
0
0
0
0
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns