M28R400CT, M28R400CB
Table 17. Write AC Characteristics, Chip Enable Controlled
M28R400C
Symbol
Alt
Parameter
Unit
90
120
120
50
50
0
t
t
WC
Write Cycle Time
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
90
50
50
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AVAV
t
t
Address Valid to Chip Enable High
Data Valid to Chip Enable High
AVEH
AS
DS
AH
DH
t
t
t
t
DVEH
t
Chip Enable High to Address Transition
Chip Enable High to Data Transition
Chip Enable High to Chip Enable Low
Chip Enable High to Output Enable Low
Chip Enable High to Write Enable High
Chip Enable Low to Chip Enable High
Chip Enable Low to Output Valid
EHAX
t
0
0
EHDX
t
t
CPH
30
30
0
30
30
0
EHEL
t
EHGL
t
t
WH
EHWH
t
t
CP
50
90
50
120
ELEH
t
ELQV
(1,2)
Output Valid to V Low
Min
Min
Min
0
0
0
0
ns
ns
ns
t
PP
QVVPL
t
Data Valid to Write Protect Low
QVWPL
(1)
t
V
High to Chip Enable High
PP
200
200
t
VPS
VPHEH
t
t
CS
Write Enable Low to Chip Enable Low
Write Protect High to Chip Enable High
Min
Min
0
0
ns
ns
WLEL
t
50
50
WPHEH
Note: 1. Sampled only, not 100% tested.
2. Applicable if V is seen as a logic input (V < 2.2V).
PP
PP
26/48
NUMONYX [ NUMONYX B.V ]
