NT5DS64M4AT Datasheet, PDF (28/78 Pages) List of Unclassifed Manufacturers – 256Mb Double Data Rate SDRAM

NT5DS64M4AT NT5DS64M4AW
NT5DS32M8AT NT5DS32M8AW
256Mb Double Data Rate SDRAM
Read to Write: CAS Latencies (Burst Length = 4 or 8)
CK
CK
Command
Address
DQS
DQ
DM
CAS Latency = 2
Read
BAa, COL n
BST
CL=2
NOP
Write
BAa, COL b
NOP
NOP
t_DQSS (min)
DOa-n
DI a-b
CK
CK
Command
Address
DQS
DQ
DM
CAS Latency = 2.5
Read
BAa, COL n
BST
NOP
NOP
CL=2.5
DOa-n
Write
BAa, COL b
NOP
t_DQSS (min)
Dla-b
DO a-n = data out from bank a, column n
.DI _{a-b = data in to bank a, column b}
1 subsequent elements of data out appear in the programmed order following DO a-n.
Data In elements are applied following Dl a-b in the programmed order, according to burst length.
Shown with nominal t_AC, t_DQSCK, and t_DQSQ.
Don’t Care
REV 1.1
12/2001
28
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