M28R400CT, M28R400CB
Table 16. Write AC Characteristics, Write Enable Controlled
M28R400C
Symbol
Alt
Parameter
Unit
90
120
120
50
t
t
WC
Write Cycle Time
Min
Min
Min
Min
Min
Min
Min
90
50
50
0
ns
ns
ns
ns
ns
ns
ns
AVAV
t
t
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
AVWH
AS
DS
CS
t
t
t
50
DVWH
t
0
ELWL
t
90
0
120
ELQV
(1,2)
Output Valid to V Low
0
0
t
PP
QVVPL
t
Output Valid to Write Protect Low
0
QVWPL
(1)
t
V
High to Write Enable High
Min
Min
Min
Min
Min
Min
Min
Min
Min
200
0
200
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
VPS
PP
VPHWH
t
t
t
t
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
WHAX
WHDX
WHEH
AH
DH
CH
t
t
0
0
0
0
t
t
30
30
30
50
50
30
30
30
50
50
WHEL
WHGL
WHWL
t
t
WPH
t
t
WLWH
WP
t
WPHWH
Note: 1. Sampled only, not 100% tested.
2. Applicable if V is seen as a logic input (V < 2.2V).
PP
PP
24/48
NUMONYX [ NUMONYX B.V ]
