is43dr16320b Lattice Semiconductor Corp., is43dr16320b Datasheet - Page 22

• Manufacturer Part Number: is43dr16320b
• Description: 512mb X8, X16 Ddr2 Sdram
• Manufacturer: Lattice Semiconductor Corp.

IS43/46DR86400B, IS43/46DR16320B
AC Characteristics
(AC Operating Conditions Unless Otherwise Noted)
Row Cycle Time
Auto Refresh Row Cycle Time
Row Active Time
Row Actvie to Column Address
Delay
Row Active to Row Active Delay
Column Address to Column
Address Delay
Row Precharge Time
Write Recovery Time
Auto precharge Write recovery +
Precharge Time
Clock Cycle Time
Clock High Level Width
Clock Low Level Width
Cycle to cycle
Data-Out Edge to Clock Skew
Edge
DQS-Out Edge to Clock Skew
Edge
DQS-Out Edge to Clock Skew
Edge
Data-Out Hold Time from DQS
Data Hold Skew Factor
Clock Half Period
Input Setup Time (fast slew rate)
Input Hold Time (fast slew rate)
Input Pulse Width
Write DQS High Level Width
Write DQS Low Level Width
CLK to First Rising Edge of DQS-
In
Data-In Setup Time to DQS-In
(DQ, DM)
Integrated Silicon Solution, Inc. – www.issi.com –
Rev. E, 01/17/2011
Parameter
tCK3 (CL=3)
tCK4 (CL=4)
tCK5 (CL=5)
tCK6 (CL=6)
tRRD(x16)
tRRD(x8)
tDQSCK
Symbol
tDQSQ
tDQSH
tDQSS
tDQSL
tJITcc
tQHS
tRCD
tCCD
tIPW
tRFC
tRAS
tDAL
tWR
tQH
tRC
tRP
tCH
tAC
tHP
tDS
tCL
tIH
tIS
0.45
0.45
0.35
0.35
DDR2-400B
Min
105
-0.6
-0.5
350
475
150
7.5
0.6
55
40
15
10
15
15
2
5
5
5
5
250
-5B
Max
0.55
0.55
0.35
70K
450
0.6
0.5
8
8
8
8
-0.45 0.45
3.75
3.75
3.75
0.45
0.45
0.35
0.35
DDR2-533C
Min
105
-0.5
250
375
100
7.5
0.6
60
45
15
10
15
15
Min = WL-0.25tCK, Max = WL+0.25tCK
2
5
Min = tCH(min)/tCL(min), Max = n/a
-37C
250
Min = tHP(min)-tQHS, Max = n/a
Max
Min = tWR+tRP, Max = n/a
0.55
0.55
70K
400
0.5
0.3
8
8
8
8
-0.45 0.45
DDR2-667D
3.75
0.45
0.45
0.35
0.35
Min
105
-0.4
200
275
7.5
0.6
60
45
15
10
15
15
50
2
5
3
3
-3D
250
Max
0.55
0.55
0.24
70K
340
0.4
8
8
8
8
-0.35 0.35
3.75
0.45
0.45
0.35
0.35
DDR2-800E
Min
105
-0.4
175
250
7.5
2.5
0.6
60
45
15
10
15
15
50
2
5
3
-25E
200
Max
0.55
0.55
70K
300
0.4
0.2
8
8
8
8
57.25
-0.35
DDR2-800D Units Notes
12.5
3.75
0.45
0.45
0.35
0.35
Min
105
-0.4
175
250
7.5
2.5
2.5
0.6
45
10
15
15
50
2
5
-25D
200
Max
0.55
0.55
0.35
70K
300
0.4
0.2
8
8
8
8
tCK
tCK
tCK
tCK
tCK
tCK
tCK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ns
ns
ns
ns
ps
ns
ps
ps
ps
16,17,18
15,17
15,17
11
21
20
12
22
2
2
2
5