HY57V281620HC(L)T
AC CHARACTERISTICS II
-6
Parameter
Symbol
Min
Operation
RAS Cycle Time
Auto Refresh
RAS to CAS Delay
RAS Active Time
RAS Precharge Time
RAS to RAS Bank Active Delay
CAS to CAS Delay
Write Command to Data-In Delay
Data-In to Precharge Command
Data-In to Active Command
DQM to Data-Out Hi-Z
DQM to Data-In Mask
MRS to New Command
Precharge to Data
Output Hi-Z
CAS Latency = 3
CAS Latency = 2
tRRC
tRCD
tRAS
tRP
tRRD
tCCD
tWTL
tDPL
tDAL
tDQZ
tDQM
tMRD
tPROZ3
tPROZ2
tPDE
tSRE
tREF
60
18
42
18
12
1
0
2
5
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
65
20
45
20
14
1
0
2
5
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
65
15
45
15
15
1
0
2
4
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
65
20
45
20
15
1
0
2
5
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
68
20
48
20
16
1
0
1
4
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
70
20
50
20
20
1
0
1
3
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
70
20
50
20
20
1
0
1
3
2
0
2
3
2
1
1
-
-
-
100K
-
-
-
-
-
-
-
-
-
-
-
-
-
64
ns
ns
ns
ns
ns
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
ms
1
tRC
60
Max
-
Min
60
Max
-
Min
60
Max
-
Min
65
Max
-
Min
68
Max
-
Min
70
Max
-
Min
70
Max
-
ns
-7
-K
-H
-8
-P
-S
Unit
Note
Power Down Exit Time
Self Refresh Exit Time
Refresh Time
Note :
1. A new command can be given tRRC after self refresh exit
Rev. 0.2/Aug. 01
9
HYNIX [ HYNIX SEMICONDUCTOR ]
