NT256S64V8HC0G Datasheet, PDF (9/10 Pages) List of Unclassifed Manufacturers – 32Mx64 bit Two Bank Unbuffered SDRAM Module

NT256S64V8HC0G
256MB : 32M x 64
Unbuffered SDRAM Module
Read Cycle
Symbol
Parameter
- 7K
- 75B
- 8B
Unit
Min.
Max.
Min.
Max.
Min.
Max.
tOH
Data Out Hold Time
-
-
-
-
2.5
-
ns
2.7
-
2.7
-
3
-
ns
tLZ
Data Out to Low Impedance Time
0
-
0
-
0
-
ns
tHZ3
Data Out to High Impedance Time
3
5.4
3
5.4
3
6
ns
tDQZ
DQM Data Out Disable Latency
2
-
2
-
2
-
CLK
1. Referenced to the time at which the output achieves the open circuit condition, not to output voltage levels.
Note
1
Refresh Cycle
Symbol
Parameter
tREF
tSREX
Refresh Period
Self Refresh Exit Time
- 7K
- 75B
- 8B
Unit
Min.
Max.
Min.
Max.
Min.
Max.
-
64
-
64
-
64
ms
10
-
10
-
10
-
ns
Note
Write Cycle
Symbol
Parameter
tDS
tDH
tDPL
tDAL3
tDAL2
tDQW
Data In Set-up Time
Data In Hold Time
Data input to Precharge
Data In to Active Delay
CAS Latency = 3
Data In to Active Delay
CAS Latency = 2
DQM Write Mask Latency
- 7K
- 75B
- 8B
Unit
Min.
Max.
Min.
Max.
Min.
Max.
1.5
-
1.5
-
2
-
ns
0.8
-
0.8
-
1
-
ns
15
-
15
-
15
-
ns
5
-
5
-
5
-
CLK
5
-
-
-
-
-
CLK
0
-
0
-
0
-
ns
Note
Preliminary 10 / 2001
9
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