參數(shù)資料
型號: HYB25D256160BCL-7F
廠商: INFINEON TECHNOLOGIES AG
英文描述: 256 Mbit Double Data Rate SDRAM
中文描述: 256兆雙倍數(shù)據(jù)速率SDRAM
文件頁數(shù): 31/94頁
文件大?。?/td> 3326K
代理商: HYB25D256160BCL-7F
Data Sheet
37
Rev. 1.6, 2004-12
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Functional Description
Figure 13
Random Read Accesses: CAS Latencies (Burst Length = 2, 4 or 8)
DOa-n
CAS Latency = 2
Read
NOP
Read
DOa-b
DOa-n’
DOa-x
DOa-x’
DOa-b’
DOa-g
CK
Command
Address
DQS
DQ
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 tAC, tDQSCK, and tDQSQ.
Don’t Care
BAa, COL n
BAa, COL x
BAa, COL b
BAa, COL g
CL=2
CAS Latency = 2.5
Read
NOP
Read
CK
Command
Address
DQS
DQ
BAa, COL n
BAa, COL x
BAa, COL b
BAa, COL g
CL=2.5
DOa-n
DOa-b
DOa-n’
DOa-x
DOa-x’
DOa-b’
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