AS4C14400
®
Write cycle
-40
-50
-60
-70
Symbol
Parameter
Min
0
Max
–
Min
0
Max
–
Min
0
Max
–
Min
0
Max
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
t
Column address setup time
Column address hold time
Column address hold time to RAS
Write command setup time
Write command hold time
Write command hold time to RAS
Write command pulse width
Write command to RAS lead time
Write command to CAS lead time
Data-In setup time
ASC
t
t
t
t
t
t
t
t
t
t
t
8
–
10
40
0
–
10
45
0
–
15
55
0
–
CAH
AWR
WCS
WCH
WCR
WP
30
0
–
–
–
–
–
–
–
–
11
11
5
–
10
40
10
13
13
0
–
10
45
10
15
15
0
–
15
55
15
18
18
0
–
30
8
–
–
–
–
–
–
–
–
10
10
0
–
–
–
–
RWL
CWL
DS
–
–
–
–
–
–
–
–
12
12
Data-In hold time
8
–
10
40
–
10
45
–
15
55
–
DH
Data-In hold time to RAS
30
–
–
–
–
DHR
Shaded areas contain advance information.
Read-modify-write cycle
-40
-50
-60
-70
Symbol
Parameter
Min
105
60
Max
–
Min
131
73
Max
–
Min
155
85
Max
–
Min
181
98
Max
–
Unit Notes
t
t
t
t
t
t
Read-write cycle time
RAS to WE delay time
CAS to WE delay time
Column address to WE delay time
CAS to RAS hold time (write)
CAS pulse width (write)
ns
RWC
–
–
–
–
ns
ns
ns
ns
ns
11
11
11
RWD
30
–
36
–
40
–
46
–
CWD
40
–
48
–
55
–
63
–
AWD
10
–
13
–
15
–
18
–
RSH(W)
CAS(W)
10
–
13
–
15
–
18
–
Shaded areas contain advance information.
5
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
