參數(shù)資料
型號: HB52E169EN
廠商: Hitachi,Ltd.
英文描述: 64 MB Unbuffered SDRAM DIMM(64MB 未緩沖同步DRAM DIMM)
中文描述: 64 MB的無緩沖SDRAM的內(nèi)存(64MB的未緩沖同步的DRAM內(nèi)存)
文件頁數(shù): 39/64頁
文件大小: 2741K
代理商: HB52E169EN
HB52E88EM-F, HB52E89EM-F, HB52E168EN-F, HB52E169EN-F
39
Burst Read (Burst Length = 4)
Write with auto-precharge:
In this operation, since precharge is automatically performed after completing
a burst write or single write operation, a precharge command need not be executed after each write operation.
The command executed for the same bank after the execution of this command must be the bank active
(ACTV) command. In addition, an interval of l
APW
is required between the final valid data input and input
of next command.
Burst Write (Burst Length = 4)
CK
lAPR
lRAS
lAPR
CL=2 Command
CL=3 Command
Dout
Dout
Note: Internal auto-precharge starts at the timing indicated by " ".
And an interval of t
RAS
(l
RAS
) is required between previous active (ACTV) command and internal precharge " ".
ACTV
READ A
ACTV
out3
out2
out1
out0
lRAS
ACTV
READ A
ACTV
out3
out2
out1
out0
CK
Command
Din
l
APW
I
RAS
ACTV
WRIT A
in0
in1
in2
in3
ACTV
Note: Internal auto-precharge starts at the timing indicated by " ".
and an interval of t
RAS
(l
RAS
) is required between previous active (ACTV) command
and internal precharge " ".
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