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FMS1616LAX-XXEX Datasheet - Page 17

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AC Characteristics
AC Characteristics
Parameter
[33.]
Clock Period
Clock High Time
Clock Low Time
Address Setup Time to Clock
Address Hold Time to Clock
CKE Setup Time to Clock
CKE Hold Time to Clock
Clock Access Time
Data-Out Low-Impedance Time
Output Hold Time from Clock (load)
Output Hold Time from Clock (no load)
Data In Setup Time to Clock
Data In Hold Time to Clock
/CS, /RAS, /CAS, /WE, /DQM Setup Time to Clock
/CS, /RAS, /CAS, /WE, /DQM Hold Time to Clock
[25.]
Data High Impedance Time
Active to Precharge Command
Active to Active Command Period
Active to Read/Write Delay
Refresh Period(2048 rows)
Auto Refresh Period
Precharge Command Period
Active Banka to Active Bankb Command
[34.]
Transition Time
[35.]
Write Recovery Time
[36.]
Write Recovery Time
[37.]
Exit Self Refresh to Active Command
READ/WRITE command to READ/WRITE command
CKE to clock disable or power-down entry mode
CKE to clock enable or power-down exit setup mode
[38.]
DQM to input data delay
[38.]
DQM to data mask during WRITEs
DQM to data high-impedance during READs
[38.]
WRITE command to input data delay
[40.]
Data-in to ACTIVE command
[41.]
Data-in to PRECHARGE command
[38.]
Last data-in to burst STOP command
Rev0.3, May., 2010
Symbol
t
CLKS3
t
CLKS2
t
CH
t
CL
t
CAS
t
CAH
t
CKS
t
CKH
CL=3
t
(3)
AC
CL=2
t
(2)
AC
t
LZ
t
OH
t
OHN
t
CDS
t
CDH
t
CMS
t
CMH
CL=3
t
(3)
HZ
CL=2
t
(2)
HZ
t
RAS
t
RC
t
RCD
t
REF
t
RFC
t
RP
t
RRD
t
T
t
WR
t
WR
t
XSR
[38.]
t
CCD
[39.]
t
CKED
[39.]
t
PED
t
DQD
t
DQM
[38.]
t
DQZ
t
DWD
t
DAL
t
DPL
t
BDL
FMS1616LAx-xxEx
-60
-75
Min
Max
Min
Max
6.0
7.5
1000
1000
10
12
2.5
3.0
2.5
3.0
1.5
2.0
1.0
1.0
1.5
2.0
1.0
1.0
5.5
7
8
10
1.0
1.0
2.0
2.0
1.8
1.5
2.0
1.0
1.0
1.5
2.0
1.0
1.0
5.5
8
42
100000
48
120000
60
75
18
18
32
32
80
80
18
18
12
15
0.5
1.2
0.5
1.2
2
2
12
12
70
80
1
1
1
1
1
1
0
0
0
0
2
2
0
0
t
+t
t
+t
WR
RP
WR
RP
2
2
1
1
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
tck
ns
ns
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
Ck
t
CK

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