6 / 21 page
AS4C1M16F5
4/11/01; v.0.9.1
Alliance Semiconductor
P. 6 of 21
®
Fast page mode cycle
Output enable
Symbol
Parameter
-50
-60
Unit
Notes
Min
Max
Min
Max
tCPA
Access time from CAS precharge
–
28
–
35
ns
13
tRASP
RAS
pulse width
50
100K
60
100K
ns
tPC
Read-write cycle time
30
–
35
–
ns
tCP
CAS
precharge time (fast page)
10
–
10
–
ns
tPCM
Fast page mode RMW cycle
80
–
85
–
ns
tCRW
Page mode CAS pulse width (RMW)
54
–
60
–
ns
Symbol
Parameter
-50
-60
Unit
Notes
MinMax
MinMax
tCLZ
CAS
to output in Low Z
0
–
0
–
ns
8
tROH
RAS
hold time referenced to OE
8–
10
–
ns
tOEA
OE
access time
–
13
–
15
ns
tOED
OE
to data delay
13
–
15
–
ns
tOEZ
Output buffer turnoff delay from OE
0130
15
ns
8
tOEH
OE
command hold time
10
–
10
–
ns
tOLZ
OE
to output in Low Z
0
–
0
–
ns
tOFF
Output buffer turn-off time
0
13
0
15
ns
8,10