IS42S83200C
IS42S16160C
OPERATING AC PARAMETER
(AC operating conditions unless otherwise noted)
Version
Parameter
Symbol
-6
Row active to row active delay
RAS to CAS delay
Row precharge time
t
RRD
(min)
t
RCD
(min)
t
RP
(min)
t
RAS
(min)
Row active time
t
RAS
(max)
Row cycle time
Last data in to row precharge
Last data in to active delay
Last data in to new col. address delay
Last data in to burst stop
Mode register set cycle time
Unit
-75
15
20
20
45
100K
65
2
5
1
1
2
Note
-7
14
20
20
45
100K
63
2
5
1
1
2
12
18
18
42
100K
60
2
5
1
1
2
ns
ns
ns
ns
ns
ns
CLK
CLK
CLK
CLK
CLK
1
1
1
1
t
RC
(min)
t
RDL
(min)
t
DAL
(min)
t
CDL
(min)
t
DBL
(min)
t
MRD
(min)
1
R e fre sh in te rva l tim e
Auto refresh cycle time
t
REF
(max)
t
ARFC
(min)
64
60
64
70
64
75
ms
ns
NOTES:
1. The minimum number of clock cycles is determined by dividing the minimum time required with clock cycle time and then rounding off to the next
higher integer.
8
Integrated Silicon Solution, Inc. — www.issi.com
Rev.
C
04/02/09
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
