AS4LC4M4E0
AS4LC4M4E1
®
Hyper page mode cycle
-50
-60
Symbol
tCPWD
tCPA
Parameter
Min
45
–
Max
–
Min
52
–
Max
–
Unit
ns
Notes
CAS precharge to WE delay time
Access time from CAS precharge
RAS pulse width
28
100K
–
35
100K
–
ns
13
tRASP
tDOH
tREZ
50
5
60
5
ns
Previous data hold time from CAS
Output buffer turn off delay from RAS
Output buffer turn off delay from WE
Output buffer turn off delay from OE
Hyper page mode cycle time
Hyper page mode RMW cycle
RAS hold time from CAS
ns
0
13
13
13
–
0
15
15
15
–
ns
tWEZ
0
0
ns
tOEZ
0
0
ns
tHPC
20
47
30
25
56
35
ns
tHPRWC
tRHCP
–
–
ns
–
–
ns
Output enable
-50
-60
Symbol
tCLZ
Parameter
Min
0
Max
–
Min
0
Max
–
Unit
ns
Notes
CAS to output in Low Z
RAS hold time referenced to OE
OE access time
8
tROH
tOEA
tOED
tOEZ
tOEH
tOLZ
8
–
10
–
–
ns
–
13
–
15
–
ns
OE to data delay
13
0
15
0
ns
Output buffer turnoff delay from OE
OE command hold time
OE to output in Low Z
Output buffer turn-off time
13
–
15
–
ns
8
10
0
10
0
ns
–
–
ns
tOFF
0
13
0
15
ns
8,10
Self-refresh cycle
-50
-60
Std
Symbol
Parameter
Min
Max
Min
Max
Unit
Notes
RAS pulse width
(CBR self refresh)
tRASS
100
–
100
–
µs
ns
ns
RAS precharge time
(CBR self refresh)
tRPS
90
8
–
–
105
10
–
–
CAS hold time
(CBR self refresh)
tCHS
4/11/01; V.1.1
Alliance Semiconductor
P. 7 of 15
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
