參數(shù)資料
型號: HYB25D128400AT-7
英文描述: ?128Mb (32Mx4) DDR266A (2-3-3)?
中文描述: ?128Mb的(32Mx4)DDR266A(2-3-3)?
文件頁數(shù): 22/76頁
文件大?。?/td> 1218K
代理商: HYB25D128400AT-7
HYB25D128400/800/160AT(L)
128-Mbit Double Data Rate SDRAM
Page 22 of 76
2002-05-06
Consecutive Read Bursts: CAS Latencies (Burst Length = 4 or 8)
CAS Latency = 2
N
OP
Read
N
OP
N
OP
N
OP
Read
CK
CK
Command
Address
DQS
DQ
CL=2
BAa, COL n
BAa, COL b
Don’t Care
DO a-n (or a-b) = data out from bank a, column n (or bank a, column b).
W
hen burst length = 4, the bursts are concatenated.
W
hen burst length = 8, the second burst interrupts the first.
3 subsequent elements of data out appear in the programmed order following DO a-n.
3 (or 7) subsequent elements of data out appear in the programmed order following DO a-b.
Shown with nominal t
AC
, t
DQSCK
, and t
DQSQ
.
CAS Latency = 2.5
N
OP
Read
N
OP
N
OP
N
OP
Read
CK
CK
Command
Address
DQS
DQ
CL=2.5
BAa, COL n
BAa,COL b
DOa-n
DOa- n
DOa- b
DOa-b
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