HYB25D256800CL-6 Datasheet

  • HYB25D256800CL-6

  • 256 Mbit Double Data Rate SDRAM

  • 3260.54KB

  • 94页

  • INFINEON   INFINEON

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HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Functional Description
CAS Latency = 2
CK
CK
Command
Address
Read
BAa, COL n
Read
BAa, COL x
Read
BAa, COL b
Read
BAa, COL g
NOP
NOP
CL=2
DQS
DQ
DOa-n
DOa-n鈥?/div>
DOa-x
DOa-x鈥?/div>
DOa-b
DOa-b鈥?/div>
DOa-g
CAS Latency = 2.5
CK
CK
Command
Address
Read
BAa, COL n
Read
BAa, COL x
Read
BAa, COL b
Read
BAa, COL g
NOP
NOP
CL=2.5
DQS
DQ
DOa-n
DOa-n鈥?/div>
DOa-x
DOa-x鈥?/div>
DOa-b
DOa-b鈥?/div>
DO a-n, etc. = data out from bank a, column n etc.
n' etc. = odd or even complement of n, etc. (i.e., column address LSB inverted).
Reads are to active rows in any banks.
Shown with nominal t
AC
, t
DQSCK
, and t
DQSQ
.
Don鈥檛 Care
Figure 13
Random Read Accesses: CAS Latencies (Burst Length = 2, 4 or 8)
Data Sheet
37
Rev. 1.6, 2004-12

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