AS4C14400
®
Fast page mode cycle
-40
Symbol
t
PC
t
CAP
t
CP
t
PCM
t
CRW
t
RASP
Parameter
Read-write cycle time
(fast page)
Access time from CAS precharge
CAS precharge time
(fast page)
Fast page mode RMW cycle
Page mode CAS pulse width
(RMW)
RAS pulse width
Min
30
–
5
65
45
40
Max
–
25
–
–
–
100K
Min
35
–
10
76
54
50
-50
Max
–
30
–
–
–
100K
Min
40
–
10
85
60
60
-60
Max
–
35
–
–
–
100K
Min
45
–
10
96
69
70
-70
Max
–
40
–
–
–
100K
Unit
ns
ns
ns
ns
ns
ns
Notes
14
13
Shaded areas contain advance information.
Refresh cycle
-40
Symbol
t
CSR
t
CHR
t
RPC
t
CPT
Parameter
CAS setup time (CAS-before-RAS)
CAS hold time (CAS-before-RAS)
RAS precharge to CAS hold time
CAS precharge time
(CAS-before-RAS counter test)
Min
10
10
0
5
Max
–
–
–
–
Min
10
10
0
10
-50
Max
–
–
–
–
Min
10
15
0
10
-60
Max
–
–
–
–
Min
10
15
0
10
-70
Max
–
–
–
–
Unit
ns
ns
ns
ns
Notes
3
3
Shaded areas contain advance information.
Output enable
Std
Symbol
t
ROH
t
OEA
t
OED
t
OEZ
t
OEH
-40
Parameter
RAS hold time referenced to OE
OE access time
OE to data delay
Output buffer turnoff delay
from OE
OE command hold time
Min
5
–
10
–
10
Max
–
10
–
10
–
Min
10
–
13
–
13
-50
Max
–
13
–
13
–
Min
10
–
15
–
15
-60
Max
–
15
–
15
–
Min
10
–
18
–
18
-70
Max
–
18
–
18
–
Unit
ns
ns
ns
ns
ns
8, 10
Notes
Shaded areas contain advance information.
6
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
