AS4C4M4F0
AS4C4M4F1
®
Fast page mode cycle
-50
Symbol
t
CPA
t
RASP
t
PC
t
CP
t
PCM
t
CRW
Parameter
Access time from
CAS
precharge
RAS
pulse width
-60
Max
28
100K
–
–
–
–
Min
–
60
35
10
85
15
Max
35
100K
–
–
–
–
Unit
Notes
13
Min
–
50
30
10
80
12
Read-write cycle time
CAS
precharge time (fast page)
Fast page mode RMW cycle
Page mode
CAS
pulse width (RMW)
Output enable
-50
Symbol
t
CLZ
t
ROH
t
OEA
t
OED
t
OEZ
t
OEH
t
OLZ
t
OFF
Parameter
CAS to output in Low Z
RAS hold time referenced to OE
OE access time
OE to data delay
Output buffer turnoff delay from OE
OE command hold time
OE to output in Low Z
Output buffer turn-off time
Min
0
8
–
13
0
10
0
0
Max
–
–
13
–
13
–
–
13
Min
0
10
–
15
0
10
0
0
-60
Max
–
–
15
–
15
–
–
15
Unit
ns
ns
ns
ns
ns
ns
ns
ns
8,10
8
Notes
8
Self refresh cycle
Std
Symbol
t
RASS
t
RPS
t
CHS
-50
Parameter
RAS pulse width
(CBR self refresh)
RAS precharge time
(CBR self refresh)
CAS
hold time
-60
Max
–
–
–
Min
100
105
10
Max
–
–
–
Unit
µs
ns
ns
Notes
Min
100
90
8
(CBR self refresh)
4/11/01; v.0.9
Alliance Semiconductor
P. 7 of 18
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
