AS4LC4M4F1
®
Fast page mode cycle
-50
-60
Symbol
tCPA
Parameter
Min
–
Max
Min
–
Max
Unit
Notes
13
Access time from CAS precharge
RAS pulse width
28
35
tRASP
tPC
50
30
10
80
12
100K
60
35
10
85
15
100K
Read-write cycle time
–
–
–
–
–
–
–
–
tCP
CAS precharge time (fast page)
Fast page mode RMW cycle
Page mode CAS pulse width (RMW)
tPCM
tCRW
Output enable
-50
-60
Symbol
tCLZ
Parameter
Min
0
Max
–
Min
0
Max
–
Unit
ns
Notes
8
CAS to output in Low Z
RAS hold time referenced to OE
OE access time
tROH
tOEA
tOED
tOEZ
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
tOEH
tOLZ
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
100
105
10
Max
Unit
µs
Notes
15
tRASS
tRPS
RAS pulse width (CBR self refresh)
RAS precharge time (CBR self refresh)
CAS hold time (CBR self refresh)
100
90
8
-
-
-
-
-
-
ns
tCHS
nx
5/16/01; v.1.0 Restored
Alliance Semiconductor
P. 6 of 14
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
